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03725 — PUMP,FUEL,METERING AND DISTRIBUT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

03725: PUMP,FUEL,METERING AND DISTRIBUT.

PUMP,FUEL,METERING AND DISTRIBUT. This part is cataloged in the U.S. Government catalog under NSN 5330-00-179-2106, 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
03725
NSN: 5330-00-179-2106
NIINs: 001792106, 011476386
FSC: 5330 — Packing and Gasket Materials
CAGE: 50024 — COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE FM/ALCO (USA)
SPECIFICATIONS
Part Number03725
NSN5330-00-179-2106
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 03725 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
SUBSTITUTES & CROSS-REFERENCES 9
6356Reference document
Same NSN cross-reference
Reference document — Secondary reference
43-423Reference document
Same NSN cross-reference
Reference document — Secondary reference
SC4143Reference document
Same NSN cross-reference
Reference document — Secondary reference
60101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
50023Reference document
Same NSN cross-reference
Reference document — Secondary reference
G85Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03725?
03725 is a PUMP,FUEL,METERING AND DISTRIBUT.
What parts can replace 03725?
There are 9 known substitutes for 03725: 6356, 43-423, SC4143 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 03725?
03725 is cataloged in the U.S. Government catalog under NSN 5330-00-179-2106. 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.