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21-2917 — RETAINER,SOCKET,PLUG-IN ELECTRON

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21-2917: RETAINER,SOCKET,PLUG-IN ELECTRON.

RETAINER,SOCKET,PLUG-IN ELECTRON. Key specifications include general_characteristics_item_description: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-737-1941, 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
21-2917
NSN: 5340-00-737-1941
NIINs: 007371941, 013661800
FSC: 5340 — Hardware, Commercial
CAGE: 76040 — MACK TRUCKS INC PARTS OPN (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL
NSN5340-00-737-1941
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21-2917 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL
SUBSTITUTES & CROSS-REFERENCES 4
280078Reference document
Same NSN cross-reference
Reference document — Secondary reference
5177MReference document
Same NSN cross-reference
Reference document — Secondary reference
2128354Reference document
Same NSN cross-reference
Reference document — Secondary reference
360228Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21-2917?
21-2917 is a RETAINER,SOCKET,PLUG-IN ELECTRON.
What parts can replace 21-2917?
There are 4 known substitutes for 21-2917: 280078, 5177M, 2128354 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-2917?
21-2917 is cataloged in the U.S. Government catalog under NSN 5340-00-737-1941. This indicates validated use in U.S. government and defense supply chains.
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