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NAFB6730A — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NAFB6730A: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. This part is cataloged in the U.S. Government catalog under NSN 5340-01-105-2624, 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
NAFB6730A
NSN: 5340-01-105-2624
FSC: 5340 — Hardware, Commercial
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
Part NumberNAFB6730A
NSN5340-01-105-2624
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAFB6730A 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
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 5
P16104353NSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
16104353Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
CAFB6730A B PIECE 11Reference document
Same NSN cross-reference
Reference document — Secondary reference
3226165Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CAFB67300Reference 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 NAFB6730A?
NAFB6730A is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace NAFB6730A?
There are 5 known substitutes for NAFB6730A: P16104353N, 16104353, CAFB6730A B PIECE 11 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAFB6730A?
NAFB6730A is cataloged in the U.S. Government catalog under NSN 5340-01-105-2624. 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.