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3159721 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3159721: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: INCLUDED, overall_width: 1.000 INCHES NOMINAL IN, overall_length: 8.430 INCHES NOMINAL IN, material_thickness: 0.1000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-174-4876, 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
3159721
NSN: 5340-01-174-4876
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
cushionINCLUDED
overall_width1.000 INCHES NOMINAL IN
overall_length8.430 INCHES NOMINAL IN
special_features4 SLOTS 0.219 IN.X0.500 IN. AT ONE END; 0.136 IN. HOLE AND 0.281 IN. HOLE LOCATED 0.815 IN. FROM OPPOSITE END,SPACED 0.563 IN. APART IN
material_thickness0.1000 INCHES NOMINAL IN
NSN5340-01-174-4876
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3159721 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
•
MATERIAL THICKNESS: 0.1000 INCHES NOMINAL IN
•
CUSHION: INCLUDED
TECHNICAL CHARACTERISTICS
OVERALL LENGTH8.430 INCHES NOMINAL IN
OVERALL WIDTH1.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.1000 INCHES NOMINAL IN
CUSHIONINCLUDED
SPECIAL FEATURES4 SLOTS 0.219 IN.X0.500 IN. AT ONE END; 0.136 IN. HOLE AND 0.281 IN. HOLE LOCATED 0.815 IN. FROM OPPOSITE END,SPACED 0.563 IN. APART IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
5340PL0978601Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 3159721?
3159721 is a STRAP,RETAINING.
What parts can replace 3159721?
There is 1 known substitute for 3159721: 5340PL0978601. Substitute compatibility should be verified for your specific system.
What is the NSN for 3159721?
3159721 is cataloged in the U.S. Government catalog under NSN 5340-01-174-4876. 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.