AK16553428.pdf

PDF 800 KB Posted Jun 26, 2026

Attached to: Engine, Diesel
Solicitation number: SPRDL1-26-Q-0095
Issued by: Defense Logistics Agency Land and Maritime

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Written by GovTribe AI · Jun 26, 2026

This is a DD Form 2169 Special Packaging Instruction document for a QSB6.7 M CM2250 Marine Diesel Engine (National Stock Number 2815-01-655-3428). The document provides detailed preservation and packaging requirements for long-term storage and shipment of this engine.

The preservation process requires replacing the fuel and oil filters with slave filters (Cummins P/N 3959612 and 3937743 respectively), then flushing the fuel system with one gallon of MIL-PRF-21260E Type PE-10 preservative. The engine crankcase must be filled with four gallons of the same preservative, and the turbocharger exhaust port and aftercooler inlet must be fogged with preservative using an air compressor. The engine is then cranked while fogging 35-45 milliliters of preservative into the intake port, with strict limitations on crank duration (maximum 10 seconds) to prevent starter damage. All engine openings must be sealed with caps and plugs. The packaged engine unit weighs 1,913 pounds in a 71.8 × 44.3 × 49.8 inch container. Preservation and packing shall comply with MIL-STD-2073-1 and MIL-STD-1186. The unit container is marked as reusable and includes warning tags stating that the oil system, fuel system, and cylinders are preserved, requiring removal of all caps, plugs, and tape before operation and addition of proper operational lubricant to the crankcase.

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DD FORM 2169, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 1 of 12 Pages

SPECIAL PACKAGING INSTRUCTION

Form Approved OMB No. 0704-0188

-BK

The public reporting burden for this collection of information is estimated to average 30 days per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THIS ADDRESS

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

2815-01-655-3428 6/24/2016 -

7. QUP 8. ICQ 9. UNIT PACK WT. (LB) 10. UNIT PACK CU (CU FT) 11. UNIT PACK SIZE (INCHES)

1 EACH NONE 1913.0 91.667 71.8 X 44.3 X 49.8

12. MILITARY PRESERVATION (METHOD) 18.

STEPS

19. REQ’D 20.

DESCRIPTION

MIL-STD-2073-1, METHOD 53 1-B A/R SPECIAL EQUIPMENT FOR ENGINE

13. CLEANING 2-C A/R ENGINE PRESERVATION

MIL-STD-2073-1 3-D A/R CAPS/PLUGS: NAS-847

14. DRYING 4-E A/R FABRICATED BRACKETS

MIL-STD-2073-1 5-F A/R BARRIER: ASTM-F104

6-G A/R HARDWARE

15. PACKING 7-H A/R BLOCKING: ASTM-D6199, CL 3 / A-A-55057, TY A

a. LEVEL A 8-I 1 WRAP: MIL-PRF-121, TY II, SIZE: 190 X 42

MIL-STD-2073-1 AND NOTE P 9-J 1 CUSHIONING: A-A-59135, CL 1, GR A,

b. LEVEL B SIZE: 380 X 42 X ¼” THICKNESS

NOT APPLICABLE 10-K 216 UNITS DESICCANT: MIL-D-3464, TY II

16. MARKING 11-L A/R ENVELOPE: MIL-DTL-6060E

MIL-STD-129 AND NOTE N & O 12-M 1 CONTAINER: ASTM-D7478, TY II, CL 2, ST A,

SIZE: 64 X 42 X 39

17. NOTES / DRAWING

A. INSPECT THE PRESERVATION AND UNIT PACK IN ACCORDANCE WITH MIL-STD-2073-1. INSPECT THE PACKING IN ACCORDANCE WITH MIL-STD-1186 AND THE APPLICABLE CONTAINER SPECIFICATION.

B. SPECIAL EQUIPMENT AND PARTS REQUIRED FOR ENGINE PRESERVATION.

ONE (1) PRESERVATIVE SUPPLY HOSE, 3/8” I.D. AND APPROXIMATELY 24” IN LENGTH, OF WHICH ONE END SHALL BE EQUIPPED WITH A FITTING THAT WILL MATE WITH THE FUEL INLET FITTING

LOCATED ON THE BOTTOM OF THE ENGINE, SEE FIGURE 3

ONE (1) PRESERVATIVE RETURN HOSE, 3/8” I.D. AND APPROXIMATELY 24” IN LENGTH, OF WHICH ONE END SHALL BE EQUIPPED WITH A FITTING THAT WILL FIT THE FUEL RETURN LINE OUTLET, SEE

FIGURE 3.

ONE (1) SLAVE FUEL FILTER (CUMMINS P/N 3959612).

ONE (1) SLAVE OIL FILTERS (CUMMINS P/N 3937743).

ONE (1) AIR COMPRESSOR (MAX 15 PSI) WITH A SPRAYER ATTACHMENT ABLE TO PROVIDE SPRAY

AND FOG PATTERNS.

ONE (1) 5 GALLON PAIL OR EQUIVALENT FOR PRESERVATIVE DRAINAGE.

PRESERVATION PUMP (CATERPILLAR P/N 331-3626), SEE FIGURE 1.

24V POWER SUPPLY WITH ONE (1) JUMPER WIRE WITH SMALL GATOR CLIP AND SWITCH TO

ENGAGE / DISENGAGE THE STARTER SILENOID, SEE FIGURE 1.

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 2 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

2815-01-655-3428 6/24/2016 -

17. NOTES / DRAWING

FIGURE 1 – ENGINE PRESERVATION EQUIPMENT

C. THE FOLLOWING PROCEDURES DESCRIBES THE METHOD FOR PRESERVATION OF THIS ENGINE:

ANY DEVIATIONS FROM THIS PROCEDURE SHALL BE PRE-APPROVED BY TACOM AND THE ENGINE

MANUFACTURER. SEE FIGURES 2 – 4 FOR ITEM LOCATIONS ON ENGINE.

1. REPLACE FUEL FILTER (P/N 3959612) AND OIL FILTER (P/N 3937743) WITH SLAVE FILTERS. SET ORIGINAL FILTERS ASIDE TO BE RE-INSTALLED AFTER PRESERVATION PROCESS IS COMPLETE.

2. FILL PRESERVATIVE PUMP WITH ONE (1) GALLON OF PRESERVATIVE CONFORMING TO MIL-PRF-

21260E, TYPE PE-10.

3. INSTALL PRESERVATIVE SUPPLY HOSE FROM PRESERVATIVE PUMP TO FUEL INLET, SEE FIGURE 4.

4. ATTACH PRESERVATIVE RETURN HOSE TO FUEL OUTLET, POSITION HOSE OVER PRESERVATIVE

DRAINAGE CONTAINER, SEE FIGURE 4.

5. MAUALLY PUMP APPROXIMATELY 1 GALLON OF PRESERVATIVE MIL-PRF-21260E, TYPE PE-10, THROUGH FUEL SYSTEM UNTIL ALL FUEL IS PURGED FROM THE SYSTEM AND PRESERVATIVE

BEGINS TO DRAIN FROM FUEL RETURN LINE INTO CONTAINER. DO NOT REUSE PRESERVATIVE.

6. DISCONNECT PRESERVATIVE HOSES FROM FUEL INLET AND OUTLET.

7. DRAIN ENGINE OIL BY REMOVING DRAIN PLUG, SEE FIGURE 3. REINSTALL DRAIN PLUG, TORQUE TO

25 LB FT.

8. FILL ENGINE CRANK CASE WITH 4 GALLONS (15.1 LITERS) MIL-PRF-21260E, TYPE PE-10.

9. FOG TURBO CHARGER EXHAUST PORT WITH 1ML OF MIL-PRF-21260E, TYPE PE-10, SEE FIGURE 2.

FUEL FLOW

CHECKING TOOL

CATERPILLAR

P/N 331-3626

24 VOLT POWER

SUPPLY

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 3 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

10. SPRAY MIL-PRF-21260E, TYPE PE-10 ON REAR OF ENGINE BLOCK USING THE AIR COMPRESSOR

WITH SPRAY ATTACHMENT, SEE FIGURE 3. ENSURE ALL BARE METAL SURFACES ARE COVERED.

11. REMOVE CAP ON TURBOCHARGER AFTERCOOLER.

12. USE AIR COMPRESSOR WITH SPRAYER ATTACHMENT TO PRESERVATIVE THROUGH THE

TURBOCHARGER AFTERCOOLER INLET, SEE FIGURE 2. RECAP THE INLET TO THE TURBOCHARGER

AFTERCOOLER.

13. CONNECT 24V POWER SUPPLY, JUMPER WIRE AND SWITCH TO STARTER AS SHOWN IN FIGURE 5.

14. CRANK ENGINE WHILE FOGGING 35 – 45 ML OF MIL-PRF-21260E, TYPE PE-10 INTO THE INTAKE PORT

OF THE TURBOCHARGER USING THE AIR COMPRESSOR WITH SPRAY ATTACHMENT. DO NOT CRANK

ENGINE FOR GREATER THAN 10 SECONDS AND ALLOW AT 2 – 3 MINUTES BETWEEN CYCLES TO

ALLOW THE STARTER TO COOL. FAILURE TO COMPLY MAY RESULT IN DAMAGE TO THE STARTER.

15. REPLACE SLAVE FUEL AND OIL FILTERS WITH THE ORIGINAL FILTERS.

16. DRAIN PRESERVATIVE OIL AND REPLACE OIL PLUG, TORQUE TO 25 LB FT.

17. ENSURE ALL OPENINGS TO ENGINE INTERIOR ARE SEALED WITH CAPS/PLUGS OF APPROPRIATE

SIZE OR TAPE.

THIS COMPLETES THE STEPS FOR ENGINE PRESERVATION REQUIRED PRIOR TO PACKAGING.

D. SEAL ALL OPENINGS TO ITEMS INTERIOR WITH CAPS/PLUGS OF APPROPRIATE SIZE.

E. BRACKETS SHALL BE FABRICATED FROM COMMERCIAL GRADE PLATE STEEL. BRACKETS SHALL BE FORMED BY BENDING AND GUSSETS WELDED IN PLACE. BRACKETS SHALL BE PAINTED, PLATED OR PRESERVED USING MIL-PRF -16173, GR 4. SEE TABLE 1 FIGURES 3, 9 & 10 FOR BRACKET DRAWINGS AND

PLACEMENT.

F. BARRIER MATERIAL IS TO BE PLACED BETWEEN BRACKETS/HARDWARE AND ITEM, SEE TABLE 1 AND

FIGURES 2, 3, 11 & 12 FOR SIZES AND LOCATIONS.

G. ALL HARDWARE SHALL BE COMMERCIAL GRADE AND ZINC PLATED. SEE TABLE 1 AND FIGURES 2 & 3

FOR SIZES AND LOCATION.

H. SEE TABLE 1 AND FIGURES 6 – 8 FOR SIZES AND ORIENTATION.

I. WRAP ENGINE ENTIRELY AND SECURE WITH TAPE.

J. DOUBLE WRAP CUSHIONING AROUND THE ENGINE TO PREVENT PUNCTURING THE FOIL ENVELOPE

MATERIAL, SECURE WITH TAPE.

K. DESICCANT BAGS SHALL BE PLACED WITHIN FOIL ENVELOPE, BENEATH OIL PAN, BEFORE SEALING

BAG.

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 4 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

L. ENVELOPE FABRICATION SHALL BE IN ACCORDANCE WITH SPECIFICATION MIL-DTL-6060. MATERIAL

USED FOR FABRICATION OF GASKETS SHALL CONFORM TO SPECIFICATION ASTM F 104. GASKETS SHALL BE CEMENTED TO EACH SIDE OF THE BAG AT THE MOUNTING LOCATION USING MMM-A-260 ADHESIVE OR COMMERCIAL EQUIVALENT. AFTER POSITIONING BARRIER OVER BOLTS, A SUFFICIENT QUANTITY OF ADHESIVE SHALL BE APPLIED AROUND BOLT AND GASKET TO PROVIDE AN AIRTIGHT SEAL. ENVELOPE AND GASKET ARE TO BE PLACED BETWEEN THE BLOCKING, SEE FIGURES 2, 3 & 13.

M. ITEM IS TO BE MOUNTED IN CONTAINER AS SHOWN IN FIGURES 2 & 3. CLOSE CONTAINER IN

ACCORDANCE WITH CONTAINER SPECIFICATION ASTM-D7478.

N. IN ADDITION TO MIL-STD-129 MARKINGS, THE UNIT CONTAINER SHALL BE MARKED ON THE TOP AND SIDES WITH MINIMUM 1/2 INCH HIGH BLACK LETTERS "REUSABLE CONTAINER, DO NOT DESTROY". IN ADDITION, THE TOP AND ENDS SHALL BE MARKED "REMOVE LAG SCREWS TO OPEN CONTAINER" USING

1/2 INCH HIGH BLACK LETTERS.

O. SECURE WARNING TAG (S) IN A CONSPICUOUS LOCATION ON THE ENGINE TO STATE, “ENGINE OIL

SYSTEM PRESERVED. ENGINE FUEL SYSTEM AND CYLINDERS PRESERVED. BEFORE CRANKING,

REMOVE ALL CAP/PLUGS AND TAPE AND ADD PROPER OPERATIONAL LUBRICANT TO CRANKCASE”.

P. THE UNIT CONTAINER IS THE SHIPPING CONTAINER.

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 5 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

TABLE 1 – CONSOLIDATION CONTAINER BILL OF MATERIAL

ITEM SIZE QTY REFERENCE

A 2 (NOM.) X 12 (NOM.) X 71-3/4 OVERALL LENGTH 2 SLEEPERBOARDS, ASTM-D6199

B 4 (NOM.) X 6 (NOM.) X 35 OVERALL LENGTH 1 ASTM-D6199

C 35 X 5-1/2 X 1/4” THICKNESS PLYWOOD 1 A-A-55057, TY A

D 1 (NOM.) X 6 (NOM.) X 35 OVERALL LENGTH 1 ASTM-D6199, BEVEL CORNERS 45°

E 4 (NOM.) X 4 (NOM.) X 28 OVERALL LENGTH 1 ASTM-D6199

F 2 (NOM.) X 4 (NOM.) X 28 OVERALL LENGTH 1 ASTM-D6199

G 28 X 3-1/2 X 1/2” THICKNESS PLYWOOD 1 A-A-55057, TY A

H 1 (NOM.) X 4 (NOM.) X 28 OVERALL LENGTH 1 ASTM-D6199, BEVEL CORNERS 45°

I FRONT BRACKET 2 SEE FIGURES 3 & 9

J REAR BRACKET 2 SEE FIGURES 3 & 10

K 4-1/2 X 4-1/2 BARRIER 4 ASTM F 104, SEE FIGURES 2 & 11

L 9-1/2 X 3-1/2 BARRIER 2 ASTM F 104, SEE FIGURE 12

M 1/2-13 X 9 HARDWARE SET 2

HARDWARE SET CONSISTS OF: 1PC 1/2 X

9” CARRIAGE BOLT, 1PC 3/4” FLAT

WASHER (AGAINST BOLT HEAD AND

SLEEPER BOARDS), 1PC 1/2 FLAT

WASHER, 1PC 1/2 LOCK WASHER & 1PC

1/2 NUT.

N 1”-8 X 2-1/2 HARDWARE SET 2

HARDWARE SET CONSISTS OF: 1PC 1”

HEX BOLT, 1PC 1” FLAT WASHER & 1PC 1”

LOCK WASHER AND 1” NUT.

O 1/2-13 X 12 HARDWARE SET 2

HARDWARE SET CONSISTS OF: 1PC 1/2 X

12” CARRIAGE BOLT, 1PC 3/4” FLAT

WASHER (AGAINST BOLT HEAD AND

SLEEPER BOARDS), 1PC 1/2 FLAT

WASHER, 1PC 1/2 LOCK WASHER & 1PC

1/2 NUT.

P M10 – 1.5 X 30 MM HARDWARE SET 4

HARDWARE SET CONSISTS OF: 1PC M10 –

1.5 X 30MM HEX BOLT & 1PC M10 LOCK

WASHER.

Q 26 X 6-1/4 GASKET MATERIAL 2 ASTM F 104, SEE FIGURE 13

R 16 X 6-3/4 GASKET MATERIAL 2 ASTM F 104, SEE FIGURE 13

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 6 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 2 - ENGINE PRESERVATION LOCATIONS AND BLOCKING / BRACKET IDENTIFICATION

FIGURE 3 - ENGINE PRESERVATION LOCATIONS AND BLOCKING / BRACKET IDENTIFICATION

NOTE: PLACE ITEM L BETWEEN ITEM J AND THE ENGINE BLOCK

ITEM I

ITEM M

REAR OF BLOCK

TO PRESERVE ITEM P

ITEM J

ITEM O

TURBOCHARGER EXHAUST PORT

OIL FILL

TURBOCHARGER INLET

AFTERCOOLER INLET

ITEM K AND N LOCATIONS

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 7 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 4 – DRAIN PLUG AND FUEL INLET/OUTLET IDENTIFICATION

FIGURE 5 – STARTER WIRING CONFIGURATION

FUEL OUTLET

FUEL INLET

DRAIN PLUG

JUMPER WIRE

POWER SUPPLY

GATOR CLIP (POS)

SWITCH WIRE

POWER SUPPLY

GATOR CLIP (NEG)

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 8 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 6 – BLOCKING IDENTIFICATION

NOTE: ENVELOPE AND GASKETS ARE TO BE PLACED BETWEEN ITEMS C & D AND G & H.

H G

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 9 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 7 – CONTAINER BLOCKING AND HOLE LOCATIONS (TOP VIEW)

NOTE: ALL HOLES ARE 1/2" IN DIAMETER

FIGURE 8 – LOCATION OF SLEEPERBOARDS – ITEM A (FRONT VIEW)

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 10 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 9 – ITEM I, FRONT BRACKET DIMENSIONS

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 11 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 10 - ITEM J, REAR BRACKET DIMENSIONS

FIGURE 11 – ITEM K BARRIER DIMENSIONS

DD FORM 2169C, JUN 1997 (EG) WCT 9-99 PREVIOUS EDITIONS ARE OBSOLETE Page 12 of 12 Pages

Form Approved OMB No. 0704-0188

-BK

1. PART OR DRAWING NO. (CAGE) NOMENCLATURE 2. CODE IDENT 3. SPI NO.

QSB6.7 M CM2250 (15434) ENGINE, DIESEL, MARINE 19207 AK16553428

4. NATIONAL STOCK NUMBER 5. DATE OF DRAWING 6. REVISION

FIGURE 12 – ITEM L BARRIER DIMENSIONS

FIGURE 13 – GASKETS (ITEMS Q AND R) AND HOLE LOCATIONS ON ENVELOPE (FLAT LAYOUT)

NOTE: ALL HOLES ARE 1/2” IN DIAMETER.

Q R

File details come from the government source that posted it. Updated Jun 26, 2026.