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Technical Data Sheet

M25988/1-040 — PARTS KIT,SEAL REPLACEMENT,MECHA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M25988/1-040: PARTS KIT,SEAL REPLACEMENT,MECHA.

PARTS KIT,SEAL REPLACEMENT,MECHA. Key specifications include special_features: SEAL KIT, end_item_identification: PRESSURE FUELING NOZZLE 64049. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-244-2274, 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
M25988/1-040
NSN: 5331-01-244-2274
NIINs: 012442274, 015654538
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
special_featuresSEAL KIT
end_item_identificationPRESSURE FUELING NOZZLE 64049
NSN5331-01-244-2274
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M25988/1-040 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.004 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 2.844 INCHES MINIMUM AND 2.888 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.004 INCHES NOMINAL IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER2.844 INCHES MINIMUM AND 2.888 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROSILICONE CLASS FQ
SUBSTITUTES & CROSS-REFERENCES 3
AMS-R-25988/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-R-25988/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-25988/1Reference document
Same NSN cross-reference
Reference document — Identification reference
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 M25988/1-040?
M25988/1-040 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace M25988/1-040?
There are 3 known substitutes for M25988/1-040: AMS-R-25988/1, MIL-R-25988/1, MIL-DTL-25988/1. Substitute compatibility should be verified for your specific system.
What is the NSN for M25988/1-040?
M25988/1-040 is cataloged in the U.S. Government catalog under NSN 5331-01-244-2274. 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.