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BFN442-5RT — RETAINER,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BFN442-5RT: RETAINER,NUT AND BOLT.

The RETAINER,NUT AND BOLT is a the manufacturer industrial component. Key specifications include specification/standard_data: 76301-ST3-442 MANUFACTURERS STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-322-5650, 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
BFN442-5RT
NSN: 5340-01-322-5650
FSC: 5340 — Hardware, Commercial
CAGE: 27238 — BRISTOL INDUSTRIES, LLC (USA)
SPECIFICATIONS
specification/standard_data76301-ST3-442 MANUFACTURERS STANDARD
NSN5340-01-322-5650
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BFN442-5RT 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
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SPECIFICATION/STANDARD DATA: 76301-ST3-442 MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS
SPECIFICATION/STANDARD DATA76301-ST3-442 MANUFACTURERS STANDARD
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 2
NS202042-1-054Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
F49251-5FBSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BFN442-5RT?
BFN442-5RT is a RETAINER,NUT AND BOLT.
What parts can replace BFN442-5RT?
There are 2 known substitutes for BFN442-5RT: NS202042-1-054, F49251-5FB. Substitute compatibility should be verified for your specific system.
What is the NSN for BFN442-5RT?
BFN442-5RT is cataloged in the U.S. Government catalog under NSN 5340-01-322-5650. 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.