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88-21674 — NUT,PLAIN,SQUARE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

88-21674: NUT,PLAIN,SQUARE.

The NUT,PLAIN,SQUARE is a the manufacturer industrial component. Key specifications include end_item_identification: END ITEM NSN: 6115-01-296-1463. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-297-0312, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
88-21674
NSN: 5340-00-297-0312
NIINs: 002970312, 013668134, 014786511, 015320340
FSC: 5340 — Hardware, Commercial
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
end_item_identificationEND ITEM NSN: 6115-01-296-1463
NSN5340-00-297-0312
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 88-21674 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: CLIP
•
MATERIAL THICKNESS: 0.020 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.370 INCHES NOMINAL IN
STYLE DESIGNATORCLIP
OVERALL LENGTH0.531 INCHES NOMINAL IN
OVERALL WIDTH0.520 INCHES NOMINAL IN
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
SPECIAL FEATURES0.250-20 UNC 2B RH THD NUT INCLUDED
SURFACE TREATMENTZINC
END ITEM IDENTIFICATIONW/S: RADAR SET, LIGHTWEIGHT 3D (AN/TPS-59); GENERATOR, 15KW, TQG, TACTICAL QUIET FAMILY; AIRCRAFT, STARLIFTER C-141; GENERATOR, 5KW, TQG, TACTICAL QUIET FAMILY; AIRCRAFT, HERCULES C-130; AIRCRAFT, PHANTOM F-4; AIRCRAFT, F-111; GENERATOR SET, TACT QUIET, 60KW, 400HZ, MEP-816A; GENERATOR SET, 60KW, 60HZ, SKID-MOUNTED (2ID) (MEP-006A) A
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 9
88-21674-3Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
64C42662-04Reference document
Same NSN cross-reference
Reference document — Secondary reference
70-1442-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
C7988-1420-24Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
C7931-1420-3BReference document
Same NSN cross-reference
Reference document — Secondary reference
C7931-1420Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 88-21674?
88-21674 is a NUT,PLAIN,SQUARE.
What parts can replace 88-21674?
There are 9 known substitutes for 88-21674: 88-21674-3, 64C42662-04, 70-1442-6 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 88-21674?
88-21674 is cataloged in the U.S. Government catalog under NSN 5340-00-297-0312. This indicates validated use in U.S. government and defense supply chains.
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