Top 100 Contractors in PSC 5310: Nuts and Washers, FY2021

Name: Top 100 Contractors in PSC 5310: Nuts and Washers, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 29% of FY2021 PSC 5310 contract dollars

Contract obligations: $53,345,671 Net of deobligations, by contracts coded PSC 5310
Contractors: 888 Parent companies with an obligation
Largest contractor: The Boeing Company $3.67 million, 6.3% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Boeing Company 10 awardees, including Boeing Distribution Services Defense LLC, Boeing Distribution Services X, Inc. and Boeing Distribution Services, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,666,903	6.3%	Rank history: #2 in FY2022, #3 in FY2023, #4 in FY2024 and #7 in FY2025; unchanged since FY2020.
2	RTX Corporation 9 awardees, including Goodrich Corporation, Raytheon Company and Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$3,152,924	5.4%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #5 in FY2025; up 2 since FY2020.
3	Apollo Aerospace Components LLC 3 awardees, including Ajax Tocco Magnethermic Corporation and Apollo Aerospace Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,150,897	3.7%	Rank history: #5 in FY2022, #15 in FY2023, #15 in FY2024 and #38 in FY2025; up 3 since FY2020.
4	Adept Fasteners Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,013,571	3.5%	Rank history: #6 in FY2022, #6 in FY2023, #5 in FY2024 and #3 in FY2025; down 1 since FY2020.
5	Lockheed Martin Corporation 8 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,642,768	2.8%	Rank history: #4 in FY2022, #7 in FY2023, #3 in FY2024 and #4 in FY2025; down 3 since FY2020.
6	SAFRAN 7 awardees, including Safran Landing Systems, Safran Electrical Components Canada Inc. and Avox Systems Inc. Top agencies DLA (Defense Logistics Agency)	$1,002,784	1.7%	Rank history: #9 in FY2022, #11 in FY2023, #21 in FY2024 and #55 in FY2025; up 14 since FY2020.
7	General Electric Company 5 awardees, including GE Aviation Systems LLC and GE Engine Services Distribution, L.L.C. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$837,312	1.4%	Rank history: #16 in FY2022, #12 in FY2023, #42 in FY2024 and #18 in FY2025; up 6 since FY2020.
8	Wesco Aircraft Hardware Corp. 2 awardees, including Pattonair Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$812,721	1.4%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
9	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$803,420	1.4%	Rank history: #46 in FY2022, not on the FY2023–FY2024 lists and #91 in FY2025; up 97 since FY2020.
10	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$791,050	1.4%	Rank history: #17 in FY2022, #23 in FY2023, #45 in FY2024 and #28 in FY2025; up 5 since FY2020.
11	Defense Support Services, Inc. Top agencies DLA (Defense Logistics Agency)	$752,478	1.3%	Rank history: #12 in FY2022, #8 in FY2023, #10 in FY2024 and #2 in FY2025; up 3 since FY2020.
12	ASC International, Inc. Top agencies DLA (Defense Logistics Agency)	$750,641	1.3%	Rank history: #21 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2020.
13	Don Industrial Group LLC Top agencies DLA (Defense Logistics Agency)	$743,385	1.3%	Rank history: #8 in FY2022, #9 in FY2023, #8 in FY2024 and #8 in FY2025; up 24 since FY2020.
14	ES3 Prime Logistics Group Inc. Top agencies DLA (Defense Logistics Agency)	$722,929	1.2%	Rank history: #10 in FY2022, #10 in FY2023, #12 in FY2024 and #15 in FY2025; down 9 since FY2020.
15	Indian Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$626,461	1.1%	Rank history: #7 in FY2022, #30 in FY2023, #40 in FY2024 and not on the FY2025 list; up 15 since FY2020.
16	Statz Corp Top agencies DLA (Defense Logistics Agency)	$604,741	1.0%	Rank history: #25 in FY2022, #27 in FY2023, #20 in FY2024 and #69 in FY2025; down 9 since FY2020.
17	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$514,089	0.9%	Rank history: #22 in FY2022, #18 in FY2023, #35 in FY2024 and not on the FY2025 list; up 11 since FY2020.
18	Honeywell International Inc. 8 awardees Top agencies DLA (Defense Logistics Agency)	$501,961	0.9%	Rank history: #45 in FY2022, #26 in FY2023, #32 in FY2024 and #36 in FY2025; down 1 since FY2020.
19	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$433,019	0.7%	Rank history: not on the FY2022–FY2023 lists, #70 in FY2024 and #90 in FY2025; new, not ranked in FY2020.
20	Meggitt PLC 2 awardees, including Meggitt Aircraft Braking Systems Corporation and Meggitt Aerospace Limited Top agencies DLA (Defense Logistics Agency)	$422,317	0.7%	Rank history: #19 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
21	Ingram Industries, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$412,387	0.7%	Rank history: #32 in FY2022, #95 in FY2023, #19 in FY2024 and #20 in FY2025; up 14 since FY2020.
22	BBA Aviation PLC Through Ontic Engineering & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$393,808	0.7%	Rank history: #20 in FY2022, #17 in FY2023, #17 in FY2024 and not on the FY2025 list; up 39 since FY2020.
23	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$393,165	0.7%	Rank history: #41 in FY2022, #48 in FY2023, #81 in FY2024 and not on the FY2025 list; down 7 since FY2020.
24	Birmingham Fastener & Supply Inc. Through Huntsville Fastener & Supply Inc. Top agencies DLA (Defense Logistics Agency)	$378,566	0.6%	Rank history: #62 in FY2022, #65 in FY2023, #39 in FY2024 and not on the FY2025 list; up 41 since FY2020.
25	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$372,990	0.6%	Rank history: #14 in FY2022, #47 in FY2023, #54 in FY2024 and not on the FY2025 list; down 14 since FY2020.
26	FAC Consultants It Inc. Top agencies DLA (Defense Logistics Agency)	$357,492	0.6%	Rank history: not on the FY2022–FY2025 lists; up 149 since FY2020.
27	Alamo Aircraft Supply Inc. Through Alamo Aircraft, Ltd. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$356,507	0.6%	Rank history: #31 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
28	Preci-Manufacturing, Incorporated Top agencies DLA (Defense Logistics Agency)	$355,159	0.6%	Rank history: #35 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
29	FBT Inc. Top agencies Treasury (Department of the Treasury)	$355,114	0.6%	Rank history: #48 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
30	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$350,049	0.6%	Rank history: #44 in FY2022, #36 in FY2023, #61 in FY2024 and #88 in FY2025; up 22 since FY2020.
31	General Nuclear Corp Top agencies Navy (Department of the Navy)	$332,868	0.6%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 51 since FY2020.
32	Corestar International Corporation Top agencies Navy (Department of the Navy)	$328,889	0.6%	Rank history: #84 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 150 since FY2020.
33	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$326,474	0.6%	Rank history: #55 in FY2022, #46 in FY2023, #30 in FY2024 and #39 in FY2025; up 83 since FY2020.
34	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$325,531	0.6%	Rank history: #15 in FY2022, #25 in FY2023, #18 in FY2024 and #13 in FY2025; up 32 since FY2020.
35	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$323,337	0.6%	Rank history: #30 in FY2022, #44 in FY2023, #31 in FY2024 and #26 in FY2025; up 44 since FY2020.
36	Askew Industrial Corporation Top agencies Navy (Department of the Navy)	$321,055	0.6%	Rank history: not on the FY2022–FY2024 lists and #62 in FY2025; up 18 since FY2020.
37	Tantalum Bolt & Fastener, LLC Top agencies Navy (Department of the Navy)	$298,112	0.5%	Rank history: not on the FY2022–FY2024 lists and #77 in FY2025; up 381 since FY2020.
38	Good Vibes, LLC Top agencies DLA (Defense Logistics Agency)	$297,411	0.5%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 108 since FY2020.
39	Dialogic Corp Top agencies DLA (Defense Logistics Agency)	$296,303	0.5%	Rank history: #28 in FY2022, #22 in FY2023, #47 in FY2024 and #49 in FY2025; down 14 since FY2020.
40	General Dynamics Corporation 4 awardees, including Electric Boat Corporation, General Dynamics Land Systems - Canada Corporation and General Dynamics European Land Systems-Bridge Systems GMBH Top agencies DLA (Defense Logistics Agency)	$295,890	0.5%	Rank history: #24 in FY2022, #38 in FY2023, #55 in FY2024 and #29 in FY2025; up 10 since FY2020.
41	J.T.D. Stamping Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$291,389	0.5%	Rank history: #37 in FY2022, #31 in FY2023, #34 in FY2024 and #24 in FY2025; down 3 since FY2020.
42	Aircraft Hardware West Top agencies DLA (Defense Logistics Agency)	$281,678	0.5%	Rank history: not on the FY2022–FY2025 lists; up 220 since FY2020.
43	Meg Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$280,991	0.5%	Rank history: #11 in FY2022, #16 in FY2023, #23 in FY2024 and #47 in FY2025; down 19 since FY2020.
44	T.p.s. Aviation Inc. Top agencies DLA (Defense Logistics Agency)	$276,483	0.5%	Rank history: #56 in FY2022, #97 in FY2023, #100 in FY2024 and not on the FY2025 list; up 30 since FY2020.
45	CFM International Inc. Top agencies DLA (Defense Logistics Agency)	$268,581	0.5%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 96 since FY2020.
46	Parker-Hannifin Corporation Top agencies DLA (Defense Logistics Agency)	$262,805	0.5%	Rank history: #34 in FY2022, #20 in FY2023, #67 in FY2024 and not on the FY2025 list; up 16 since FY2020.
47	Cavanaugh Government Group, LLC Top agencies DLA (Defense Logistics Agency)	$258,565	0.4%	Rank history: #88 in FY2022, #61 in FY2023, #44 in FY2024 and #25 in FY2025; down 8 since FY2020.
48	Textron Inc. 2 awardees, including Bell Textron Inc. and Textron Ground Support Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$254,123	0.4%	Rank history: #80 in FY2022, not on the FY2023 list, #48 in FY2024 and #45 in FY2025; down 39 since FY2020.
49	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$250,439	0.4%	Rank history: #40 in FY2022, #43 in FY2023, #27 in FY2024 and #12 in FY2025; down 26 since FY2020.
50	Rapid Rivet and Fastener Corporation Top agencies DLA (Defense Logistics Agency)	$248,779	0.4%	Rank history: not on the FY2022 list, #77 in FY2023, #72 in FY2024 and #58 in FY2025; up 115 since FY2020.
51	Simi Components, Inc. Top agencies DLA (Defense Logistics Agency)	$244,697	0.4%	Rank history: #92 in FY2022, #51 in FY2023, #99 in FY2024 and #93 in FY2025; up 9 since FY2020.
52	ATF Inc Through ATF Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$237,325	0.4%	Rank history: #18 in FY2022, #37 in FY2023, #26 in FY2024 and not on the FY2025 list; up 20 since FY2020.
53	Advanced CNC Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$233,108	0.4%	Rank history: #49 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
54	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$231,707	0.4%	Rank history: #94 in FY2022, #98 in FY2023, not on the FY2024 list and #22 in FY2025; down 35 since FY2020.
55	BAE Systems PLC 5 awardees, including BAE Systems Land & Armaments L.P., BAE Systems Information & Electronic Systems Integration Inc. and BAE Systems (Operations) Limited Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$229,136	0.4%	Rank history: #95 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
56	Abstract Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$226,576	0.4%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
57	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$220,272	0.4%	Rank history: #93 in FY2022, #28 in FY2023, #60 in FY2024 and #35 in FY2025; up 26 since FY2020.
58	Winslow Automatics Inc. Top agencies DLA (Defense Logistics Agency)	$218,715	0.4%	Rank history: #67 in FY2022, #41 in FY2023, not on the FY2024 list and #33 in FY2025; new, not ranked in FY2020.
59	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$217,942	0.4%	Rank history: #83 in FY2022, #89 in FY2023, #66 in FY2024 and #60 in FY2025; up 21 since FY2020.
60	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$213,811	0.4%	Rank history: #57 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2020.
61	Aero-Glen International LLC Top agencies DLA (Defense Logistics Agency)	$211,958	0.4%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
62	Midwest Fastener Supply, LLC Top agencies Navy (Department of the Navy)	$210,846	0.4%	Rank history: #90 in FY2022, not on the FY2023 list, #43 in FY2024 and not on the FY2025 list; up 33 since FY2020.
63	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$208,823	0.4%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
64	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$206,910	0.4%	Rank history: #52 in FY2022, #19 in FY2023, #9 in FY2024 and #23 in FY2025; down 16 since FY2020.
65	Supreme Integrated Technology Inc. Through HHE Services, Inc. Top agencies Navy (Department of the Navy)	$206,447	0.4%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
66	Alpine Conglomerate, LLC Top agencies DLA (Defense Logistics Agency)	$199,682	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Calspan Corporation Through North Wind Systems LLC Top agencies Navy (Department of the Navy)	$199,561	0.3%	Rank history: not on the FY2022–FY2025 lists; up 260 since FY2020.
68	Fairbanks Morse LLC Top agencies Navy (Department of the Navy)	$191,678	0.3%	Rank history: not on the FY2022–FY2023 lists, #89 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
69	Argo Turboserve Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$190,656	0.3%	Rank history: not on the FY2022–FY2023 lists, #96 in FY2024 and not on the FY2025 list; up 67 since FY2020.
70	Quality Socket Screw Manufacturing Corp Top agencies DLA (Defense Logistics Agency)	$187,532	0.3%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; down 25 since FY2020.
71	Allenboos LLC Top agencies DLA (Defense Logistics Agency)	$181,954	0.3%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
72	The Belting Company of Cincinnati Top agencies DLA (Defense Logistics Agency)	$181,782	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Century Fasteners Corp. Top agencies DLA (Defense Logistics Agency)	$178,611	0.3%	Rank history: #27 in FY2022, #33 in FY2023, #6 in FY2024 and #30 in FY2025; down 41 since FY2020.
74	Vegas Fastener Manufacturing LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$178,516	0.3%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
75	Blue Sky Industries Inc. Through FDH Aero, LLC Top agencies DLA (Defense Logistics Agency)	$176,931	0.3%	Rank history: #26 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 123 since FY2020.
76	Bell Textron Inc. Top agencies DLA (Defense Logistics Agency)	$176,357	0.3%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
77	Alcoa Inc. Through Howmet Global Fastening Systems Inc. Top agencies DLA (Defense Logistics Agency)	$176,079	0.3%	Rank history: #50 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
78	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$172,239	0.3%	Rank history: not on the FY2022 list, #94 in FY2023, #92 in FY2024 and not on the FY2025 list; up 25 since FY2020.
79	Lecuyer Aviation LLC Top agencies DLA (Defense Logistics Agency)	$170,066	0.3%	Rank history: #39 in FY2022, #14 in FY2023, #16 in FY2024 and not on the FY2025 list; down 37 since FY2020.
80	Empire Avionics Corp. Top agencies DLA (Defense Logistics Agency)	$168,966	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$168,545	0.3%	Rank history: #54 in FY2022, #68 in FY2023, #37 in FY2024 and #50 in FY2025; up 192 since FY2020.
82	2S Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$159,370	0.3%	Rank history: not on the FY2022–FY2024 lists and #27 in FY2025; up 41 since FY2020.
83	U D T, Inc. Top agencies DLA (Defense Logistics Agency)	$151,706	0.3%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
84	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$150,312	0.3%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; down 17 since FY2020.
85	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$148,757	0.3%	Rank history: #38 in FY2022, #45 in FY2023, #7 in FY2024 and not on the FY2025 list; down 58 since FY2020.
86	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$148,319	0.3%	Rank history: #72 in FY2022, #56 in FY2023, #49 in FY2024 and #51 in FY2025; down 17 since FY2020.
87	Bell Boeing Joint Project Office Top agencies DLA (Defense Logistics Agency)	$147,897	0.3%	Rank history: not on the FY2022–FY2023 lists, #76 in FY2024 and #59 in FY2025; up 10 since FY2020.
88	Airbus Americas Inc. 2 awardees, including Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$144,434	0.2%	Rank history: not on the FY2022 list, #5 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2020.
89	Qualified Fasteners Inc. Top agencies Navy (Department of the Navy)	$144,143	0.2%	Rank history: #75 in FY2022, #53 in FY2023, not on the FY2024 list and #87 in FY2025; up 1 since FY2020.
90	Aero Defense Logistics LLC Top agencies DLA (Defense Logistics Agency)	$143,099	0.2%	Rank history: not on the FY2022–FY2025 lists; up 353 since FY2020.
91	Electro Mechanical Specialists, LLC Top agencies DLA (Defense Logistics Agency)	$141,309	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	B&G Manufacturing Co Inc. Top agencies Navy (Department of the Navy)	$140,600	0.2%	Rank history: not on the FY2022–FY2023 lists, #59 in FY2024 and #78 in FY2025; down 41 since FY2020.
93	Tri-State Technical Sales Corp Top agencies DLA (Defense Logistics Agency)	$139,524	0.2%	Rank history: not on the FY2022–FY2023 lists, #84 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
94	Mechatronics, Inc. Top agencies DLA (Defense Logistics Agency)	$139,098	0.2%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
95	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$138,525	0.2%	Rank history: #53 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Midwest Military Fasteners LLC Top agencies DLA (Defense Logistics Agency)	$138,331	0.2%	Rank history: #78 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
97	Berkshire Hathaway Inc. 4 awardees, including SPS Technologies, LLC, Fatigue Technology, Inc. and Tti, Inc. Top agencies DLA (Defense Logistics Agency)	$131,484	0.2%	Rank history: not on the FY2022 list, #29 in FY2023 and not on the FY2024–FY2025 lists; down 87 since FY2020.
98	PCX Inc. Top agencies DLA (Defense Logistics Agency)	$130,932	0.2%	Rank history: not on the FY2022–FY2024 lists and #83 in FY2025; up 181 since FY2020.
99	Astral Air Parts LLC Top agencies DLA (Defense Logistics Agency)	$130,654	0.2%	Rank history: #23 in FY2022, #24 in FY2023, #85 in FY2024 and not on the FY2025 list; up 41 since FY2020.
100	Fastenal Company 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$126,099	0.2%	Rank history: not on the FY2022–FY2025 lists; up 322 since FY2020.

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100 of 888 contractors listed here. See the rest on GovTribe.

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $58.3 million obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC 5310 contractors in FY2021?

1. The Boeing Company ($3.67M), 2. RTX Corporation ($3.15M), 3. Apollo Aerospace Components LLC ($2.15M), 4. Adept Fasteners Inc. ($2.01M), 5. Lockheed Martin Corporation ($1.64M), 6. SAFRAN ($1M), 7. General Electric Company ($837K), 8. Wesco Aircraft Hardware Corp. ($813K), 9. Painter Tool Incorporated ($803K), 10. Kampi Components Co Inc. ($791K).

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