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31-048 ✓ Verified by PartsTable
Aquabeads · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RETAINER-EJECTOR,ELECTRICAL CARD. Key specifications include nut_diameter: 0.750 INCHES NOMINAL IN, special_features: NHA-UPPER RECEIVER ASSEMBLY SK1, SR-16, part_name_assigned_by_controlling_agency: RETENTION NUT, GAS BLOCK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-003-9465, 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
31-048
NSN: 5330-00-003-9465
FSC: 5330
CAGE: 36251 — MCNEIL OHIO CORP (USA)
SPECIFICATIONS
nut_diameter0.750 INCHES NOMINAL IN
special_featuresNHA-UPPER RECEIVER ASSEMBLY SK1, SR-16
part_name_assigned_by_controlling_agencyRETENTION NUT, GAS BLOCK
NSN5330-00-003-9465
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31-048 MFR: Aquabeads ⚠ 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
•
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
31-048Interchangeable
interchangeable cross-reference
interchangeable
1709Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
21708Interchangeable
interchangeable cross-reference
interchangeable
B107.410 CAT 48 TY2CL5Interchangeable
interchangeable cross-reference
interchangeable
565HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-048?
31-048 is a RETAINER-EJECTOR,ELECTRICAL CARD manufactured by Aquabeads.
What parts can replace 31-048?
There are 16 known substitutes for 31-048: 31-048, 1709, GGG-W-636 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-048?
31-048 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-003-9465. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026