Top 100 Contractors in PSC 5315: Nails, Machine Keys, and Pins, FY2021

Name: Top 100 Contractors in PSC 5315: Nails, Machine Keys, and Pins, FY2021
Creator: GovTribe

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

The top 10 won 36% of FY2021 PSC 5315 contract dollars

Contract obligations: $28,604,763 Net of deobligations, by contracts coded PSC 5315
Contractors: 680 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $2.5 million, 8.4% 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	Lockheed Martin Corporation 7 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$2,495,029	8.4%	Rank history: #1 in FY2022, #4 in FY2023, not on the FY2024 list and #2 in FY2025; up 1 since FY2020.
2	Honeywell International Inc. 6 awardees Top agencies DLA (Defense Logistics Agency)	$1,739,509	5.9%	Rank history: #4 in FY2022, #5 in FY2023, #20 in FY2024 and #4 in FY2025; up 74 since FY2020.
3	RTX Corporation 8 awardees, including Goodrich Corporation, Hamilton Sundstrand Corporation and Raytheon Company Top agencies DLA (Defense Logistics Agency)	$1,344,123	4.5%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #5 in FY2025; up 8 since FY2020.
4	BBA Aviation PLC Through Ontic Engineering & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$1,294,930	4.4%	Rank history: #33 in FY2022, #25 in FY2023, #14 in FY2024 and not on the FY2025 list; up 10 since FY2020.
5	Spec TECH USA Inc. Top agencies DLA (Defense Logistics Agency)	$741,202	2.5%	Rank history: #9 in FY2022, #8 in FY2023, #11 in FY2024 and #13 in FY2025; up 7 since FY2020.
6	The Boeing Company 7 awardees, including Boeing Distribution Services, Inc., Boeing Distribution Services Defense LLC and Boeing Distribution Services X, Inc. Top agencies DLA (Defense Logistics Agency)	$685,637	2.3%	Rank history: #10 in FY2022, #7 in FY2023, #9 in FY2024 and #1 in FY2025; down 3 since FY2020.
7	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$673,072	2.3%	Rank history: #12 in FY2022, #12 in FY2023, #4 in FY2024 and #6 in FY2025; up 2 since FY2020.
8	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$593,023	2.0%	Rank history: #7 in FY2022, #9 in FY2023, #5 in FY2024 and #11 in FY2025; down 4 since FY2020.
9	Statz Corp Top agencies DLA (Defense Logistics Agency)	$576,485	1.9%	Rank history: #2 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
10	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$525,792	1.8%	Rank history: #19 in FY2022, #6 in FY2023, #6 in FY2024 and #15 in FY2025; up 39 since FY2020.
11	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$460,115	1.5%	Rank history: #22 in FY2022, #10 in FY2023, #17 in FY2024 and #9 in FY2025; down 1 since FY2020.
12	Stanley Black & Decker, Inc. Through QRP Inc. Top agencies DLA (Defense Logistics Agency)	$429,391	1.4%	Rank history: #23 in FY2022, #41 in FY2023, #81 in FY2024 and not on the FY2025 list; up 33 since FY2020.
13	Apex Manufacturing Company, Inc. Top agencies DLA (Defense Logistics Agency)	$389,994	1.3%	Rank history: not on the FY2022–FY2023 lists, #73 in FY2024 and #72 in FY2025; new, not ranked in FY2020.
14	2S Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$343,215	1.2%	Rank history: not on the FY2022 list, #39 in FY2023, #36 in FY2024 and #27 in FY2025; up 53 since FY2020.
15	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$316,043	1.1%	Rank history: #94 in FY2022, #53 in FY2023, #21 in FY2024 and not on the FY2025 list; up 7 since FY2020.
16	Giga, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) GSA (General Services Administration)	$302,518	1.0%	Rank history: not on the FY2022–FY2023 lists, #54 in FY2024 and not on the FY2025 list; up 124 since FY2020.
17	Jergens Inc. Top agencies DLA (Defense Logistics Agency)	$296,655	1.0%	Rank history: #20 in FY2022, #37 in FY2023, #33 in FY2024 and #55 in FY2025; down 4 since FY2020.
18	Airbus Americas Inc. Through Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$296,331	1.0%	Rank history: #17 in FY2022, #16 in FY2023, #61 in FY2024 and not on the FY2025 list; down 13 since FY2020.
19	Apollo Aerospace Components LLC Top agencies DLA (Defense Logistics Agency)	$281,286	0.9%	Rank history: #15 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
20	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$255,664	0.9%	Rank history: not on the FY2022 list, #60 in FY2023, not on the FY2024 list and #21 in FY2025; up 11 since FY2020.
21	Duncan Bolt Co. Top agencies DLA (Defense Logistics Agency)	$234,199	0.8%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
22	Parker-Hannifin Corporation Top agencies DLA (Defense Logistics Agency)	$233,356	0.8%	Rank history: #46 in FY2022, #33 in FY2023, #58 in FY2024 and not on the FY2025 list; down 16 since FY2020.
23	Williams, Lucinda M Top agencies DLA (Defense Logistics Agency)	$230,449	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	ES3 Prime Logistics Group Inc. Top agencies DLA (Defense Logistics Agency)	$222,480	0.7%	Rank history: #25 in FY2022, #11 in FY2023, #7 in FY2024 and #14 in FY2025; down 23 since FY2020.
25	D&T Fasteners Inc. Top agencies DLA (Defense Logistics Agency)	$216,526	0.7%	Rank history: #29 in FY2022, #49 in FY2023, #66 in FY2024 and #45 in FY2025; up 38 since FY2020.
26	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$211,223	0.7%	Rank history: #28 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
27	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$209,950	0.7%	Rank history: #38 in FY2022, #13 in FY2023, #12 in FY2024 and #17 in FY2025; up 27 since FY2020.
28	Meggitt PLC 2 awardees, including Meggitt Aircraft Braking Systems Corporation and Meggitt Defense Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$205,172	0.7%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
29	Lake Shore Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$200,594	0.7%	Rank history: #60 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
30	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$200,292	0.7%	Rank history: not on the FY2022–FY2023 lists, #72 in FY2024 and #86 in FY2025; up 50 since FY2020.
31	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation and Alliant Techsystems Operations LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$197,574	0.7%	Rank history: #27 in FY2022, #24 in FY2023, #8 in FY2024 and #41 in FY2025; down 16 since FY2020.
32	Rolls-Royce Military Aero Engines Ltd 2 awardees, including Rolls-Royce PLC Top agencies DLA (Defense Logistics Agency)	$193,909	0.7%	Rank history: #37 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
33	Lecuyer Aviation LLC Top agencies DLA (Defense Logistics Agency)	$191,095	0.6%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
34	Kongsberg Gruppen ASA Through Kongsberg Defence & Aerospace AS Top agencies DLA (Defense Logistics Agency)	$188,235	0.6%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 38 since FY2020.
35	Fried Bros Inc. Top agencies Navy (Department of the Navy)	$187,342	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$186,057	0.6%	Rank history: #78 in FY2022, #50 in FY2023, #18 in FY2024 and #35 in FY2025; down 13 since FY2020.
37	Southern Automotive Wholesalers, Inc. Top agencies DLA (Defense Logistics Agency)	$162,379	0.5%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 248 since FY2020.
38	Precise Alignment Machine Tool Co. Top agencies DLA (Defense Logistics Agency)	$160,543	0.5%	Rank history: #72 in FY2022, #52 in FY2023, #42 in FY2024 and not on the FY2025 list; up 92 since FY2020.
39	Complete Packaging and Shipping Supplies, Inc. Top agencies GSA (General Services Administration)	$159,813	0.5%	Rank history: #59 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
40	H & M Industrial Sales Co Inc. Top agencies DLA (Defense Logistics Agency)	$157,574	0.5%	Rank history: #50 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
41	L3Harris Technologies, Inc. 4 awardees, including L3 Technologies, Inc., Fisica Applied Technologies, Inc. and L3Harris Maritime Services Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$152,852	0.5%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
42	Aero Products Component Services, Inc. Top agencies DHS (Department of Homeland Security)	$145,431	0.5%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
43	Transdigm Group Incorporated 7 awardees, including Hartwell Corporation, Mason Electric Co. and Tactair Fluid Controls Inc. Top agencies DLA (Defense Logistics Agency)	$145,329	0.5%	Rank history: #52 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
44	Cornerstone Global, LLC Top agencies DLA (Defense Logistics Agency)	$136,141	0.5%	Rank history: not on the FY2022–FY2025 lists; up 160 since FY2020.
45	C & C Metals Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$135,629	0.5%	Rank history: not on the FY2022 list, #58 in FY2023, #45 in FY2024 and #18 in FY2025; up 103 since FY2020.
46	Nexgen Composites LLC Top agencies DLA (Defense Logistics Agency)	$116,610	0.4%	Rank history: not on the FY2022 list, #91 in FY2023 and not on the FY2024–FY2025 lists; up 31 since FY2020.
47	CFM International Inc. Top agencies DLA (Defense Logistics Agency)	$114,273	0.4%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
48	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$109,609	0.4%	Rank history: #36 in FY2022, #30 in FY2023, #41 in FY2024 and #12 in FY2025; down 28 since FY2020.
49	Birmingham Fastener & Supply Inc. Through Huntsville Fastener & Supply Inc. Top agencies DLA (Defense Logistics Agency)	$109,412	0.4%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; up 34 since FY2020.
50	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$109,254	0.4%	Rank history: not on the FY2022–FY2024 lists and #79 in FY2025; up 129 since FY2020.
51	Alamo Aircraft Supply Inc. Through Alamo Aircraft, Ltd. Top agencies DLA (Defense Logistics Agency)	$107,712	0.4%	Rank history: #41 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; down 43 since FY2020.
52	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$107,205	0.4%	Rank history: #80 in FY2022, #100 in FY2023, not on the FY2024 list and #67 in FY2025; up 22 since FY2020.
53	Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$99,942	0.3%	Rank history: not on the FY2022–FY2023 lists, #10 in FY2024 and #23 in FY2025; new, not ranked in FY2020.
54	Martin-Baker (ENGINEERING) Ltd Through Martin-Baker America Inc. Top agencies DLA (Defense Logistics Agency)	$98,426	0.3%	Rank history: #63 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
55	ASC International, Inc. Top agencies DLA (Defense Logistics Agency)	$97,497	0.3%	Rank history: not on the FY2022 list, #48 in FY2023 and not on the FY2024–FY2025 lists; up 310 since FY2020.
56	T.p.s. Aviation Inc. Top agencies DLA (Defense Logistics Agency)	$96,214	0.3%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
57	Thomas Instrument, Incorporated Top agencies DLA (Defense Logistics Agency)	$90,839	0.3%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
58	Eos-Av International Corp Top agencies DHS (Department of Homeland Security)	$87,117	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	General Dynamics Corporation 5 awardees, including General Dynamics Land Systems - Canada Corporation, General Dynamics European Land Systems-Bridge Systems GMBH and General Dynamics-Ots, Inc. Top agencies DLA (Defense Logistics Agency)	$87,051	0.3%	Rank history: #68 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
60	ATF Inc Through ATF Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$86,825	0.3%	Rank history: not on the FY2022–FY2025 lists; up 43 since FY2020.
61	SAFRAN 3 awardees, including Safran Landing Systems, Safran Landing Systems Wheel & Brake Services LLC and Safran Landing Systems UK Ltd Top agencies DLA (Defense Logistics Agency)	$86,231	0.3%	Rank history: #11 in FY2022, #47 in FY2023, #39 in FY2024 and #28 in FY2025; down 6 since FY2020.
62	Wesco Aircraft Hardware Corp. Top agencies DLA (Defense Logistics Agency)	$84,663	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Ameri-Cut Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$84,484	0.3%	Rank history: #45 in FY2022, #66 in FY2023, not on the FY2024 list and #51 in FY2025; down 20 since FY2020.
64	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$81,478	0.3%	Rank history: #66 in FY2022, #40 in FY2023, #79 in FY2024 and not on the FY2025 list; up 4 since FY2020.
65	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$81,221	0.3%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
66	Lockmasters Technologies Inc. Top agencies Navy (Department of the Navy)	$80,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Marathonnorco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$79,778	0.3%	Rank history: #51 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 85 since FY2020.
68	Andritz AG Through Andritz Schuler Incorporated Top agencies Treasury (Department of the Treasury)	$79,090	0.3%	Rank history: not on the FY2022–FY2025 lists; up 199 since FY2020.
69	Dialogic Corp Top agencies DLA (Defense Logistics Agency)	$78,577	0.3%	Rank history: #70 in FY2022, #46 in FY2023, #53 in FY2024 and #47 in FY2025; down 4 since FY2020.
70	Ponski, Bogdan M Top agencies DLA (Defense Logistics Agency)	$77,373	0.3%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 29 since FY2020.
71	Allied Tools, Inc. Top agencies DLA (Defense Logistics Agency)	$77,142	0.3%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 88 since FY2020.
72	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$76,172	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$73,907	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 23 since FY2020.
74	Freehold Manufacturing Assembly Company, Inc. Top agencies DLA (Defense Logistics Agency)	$71,875	0.2%	Rank history: #30 in FY2022, #42 in FY2023, #67 in FY2024 and #60 in FY2025; down 8 since FY2020.
75	Fabrication Specialty Inc. Top agencies DLA (Defense Logistics Agency)	$71,367	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 94 since FY2020.
76	Yorkshire Industries LLC Top agencies Army (Department of the Army)	$71,273	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$71,213	0.2%	Rank history: #65 in FY2022, not on the FY2023 list, #48 in FY2024 and #46 in FY2025; up 46 since FY2020.
78	The Slabe Machine Products LLC Top agencies DLA (Defense Logistics Agency)	$70,357	0.2%	Rank history: #21 in FY2022, #38 in FY2023, #15 in FY2024 and not on the FY2025 list; down 17 since FY2020.
79	Hunt Valve Company, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$69,918	0.2%	Rank history: not on the FY2022 list, #84 in FY2023, #19 in FY2024 and not on the FY2025 list; up 81 since FY2020.
80	Salem Manufacturing & Sales Inc. Top agencies DLA (Defense Logistics Agency)	$69,873	0.2%	Rank history: not on the FY2022–FY2025 lists; up 119 since FY2020.
81	Morse Watchmans, Inc. Top agencies DOS (Department of State)	$69,762	0.2%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
82	Seyer Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$69,426	0.2%	Rank history: not on the FY2022 list, #83 in FY2023 and not on the FY2024–FY2025 lists; down 42 since FY2020.
83	Railway Specialties Corp Top agencies DLA (Defense Logistics Agency)	$67,978	0.2%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
84	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$67,701	0.2%	Rank history: #71 in FY2022, #18 in FY2023, #27 in FY2024 and #56 in FY2025; up 114 since FY2020.
85	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$66,964	0.2%	Rank history: not on the FY2022–FY2025 lists; up 402 since FY2020.
86	Dillon Aero, Inc. Top agencies DLA (Defense Logistics Agency)	$65,485	0.2%	Rank history: not on the FY2022–FY2025 lists; up 164 since FY2020.
87	BAE Systems PLC 4 awardees, including BAE Systems (Operations) Limited and BAE Systems Land & Armaments L.P. Top agencies DLA (Defense Logistics Agency)	$64,694	0.2%	Rank history: #54 in FY2022, #64 in FY2023, #51 in FY2024 and #77 in FY2025; down 41 since FY2020.
88	Contract Fabrication and Design, LLC Top agencies DLA (Defense Logistics Agency)	$63,542	0.2%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 54 since FY2020.
89	Horst Engineering & Manufacturing Co 2 awardees, including Sterling Machine Company, Inc. Top agencies DLA (Defense Logistics Agency)	$63,053	0.2%	Rank history: not on the FY2022–FY2025 lists; up 61 since FY2020.
90	B S F (Business Solutions Fasteners) International Inc. Top agencies DLA (Defense Logistics Agency)	$62,683	0.2%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 313 since FY2020.
91	Marvin Engineering Co, Inc. 2 awardees, including Marvin Land Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$61,965	0.2%	Rank history: #26 in FY2022, #45 in FY2023, not on the FY2024 list and #63 in FY2025; down 6 since FY2020.
92	A.g.h. Industries, LLC Top agencies DLA (Defense Logistics Agency)	$61,315	0.2%	Rank history: not on the FY2022 list, #72 in FY2023, #84 in FY2024 and not on the FY2025 list; up 298 since FY2020.
93	Good Vibes, LLC Top agencies DLA (Defense Logistics Agency)	$60,099	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$58,569	0.2%	Rank history: not on the FY2022–FY2023 lists, #63 in FY2024 and not on the FY2025 list; unchanged since FY2020.
95	Murar Florence Top agencies DLA (Defense Logistics Agency)	$58,077	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
96	G.t. Machining & Fabricating Ltd. Top agencies DLA (Defense Logistics Agency)	$57,388	0.2%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
97	Wisecom Technologies Inc. Top agencies Navy (Department of the Navy)	$57,250	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	VSE Corporation 2 awardees, including Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency)	$57,040	0.2%	Rank history: not on the FY2022 list, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
99	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$56,609	0.2%	Rank history: not on the FY2022–FY2025 lists; down 20 since FY2020.
100	Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency)	$55,554	0.2%	Rank history: not on the FY2022–FY2025 lists; up 58 since FY2020.

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100 of 680 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 $29.7 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 5315 contractors in FY2021?

1. Lockheed Martin Corporation ($2.5M), 2. Honeywell International Inc. ($1.74M), 3. RTX Corporation ($1.34M), 4. BBA Aviation PLC ($1.29M), 5. Spec TECH USA Inc. ($741K), 6. The Boeing Company ($686K), 7. Kampi Components Co Inc. ($673K), 8. Oshkosh Corp ($593K), 9. Statz Corp ($576K), 10. Triman Industries Inc. ($526K).

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