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1621279 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1621279: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, overall_width: 0.375 INCHES NOMINAL IN, overall_length: 1.438 INCHES NOMINAL IN, material_document_and_classification: SAE 10R4SC415 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-919-2236, 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
1621279
NSN: 5340-00-919-2236
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
overall_width0.375 INCHES NOMINAL IN
overall_length1.438 INCHES NOMINAL IN
material_document_and_classificationSAE 10R4SC415 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-919-2236
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1621279 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 DOCUMENT AND CLASSIFICATION: SAE 10R4SC415 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 10R4SC415 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.438 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1621279?
1621279 is a BUMPER.
What is the NSN for 1621279?
1621279 is cataloged in the U.S. Government catalog under NSN 5340-00-919-2236. 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.