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172763 — RETAINER,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

172763: RETAINER,NUT AND BOLT.

The RETAINER,NUT AND BOLT is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 0.520 INCHES NOMINAL IN, overall_height: 0.340 INCHES NOMINAL IN, overall_length: 0.531 INCHES NOMINAL IN, style_designator: CLIP, surface_treatment: ZINC. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-977-3992, 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
172763
NSN: 5340-00-977-3992
FSC: 5340 — Hardware, Commercial
CAGE: 0XEU2 — ALNITAK CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
overall_width0.520 INCHES NOMINAL IN
overall_height0.340 INCHES NOMINAL IN
overall_length0.531 INCHES NOMINAL IN
style_designatorCLIP
surface_treatmentZINC
material_thickness0.020 INCHES NOMINAL IN
NSN5340-00-977-3992
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 172763 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
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.340 INCHES NOMINAL IN
STYLE DESIGNATORCLIP
OVERALL LENGTH0.531 INCHES NOMINAL IN
OVERALL WIDTH0.520 INCHES NOMINAL IN
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
SURFACE TREATMENTZINC
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 3
C7931-1024-3BReference document
Same NSN cross-reference
Reference document — Secondary reference
88-21674-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
500K3287Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 172763?
172763 is a RETAINER,NUT AND BOLT.
What parts can replace 172763?
There are 3 known substitutes for 172763: C7931-1024-3B, 88-21674-7, 500K3287. Substitute compatibility should be verified for your specific system.
What is the NSN for 172763?
172763 is cataloged in the U.S. Government catalog under NSN 5340-00-977-3992. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.