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PartsTable / COMPONENT / 7954221
7954221 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.938 INCHES NOMINAL IN, outside_diameter: 0.969 INCHES NOMINAL IN, style_designator: FLANGE TYPE THREADED INTERNAL, features_provided: SUBMERSIBLE, accommodation_type: LUGS END GRIPPING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-368-9601, 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
7954221
NSN: 5340-00-368-9601
FSC: 5340
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.938 INCHES NOMINAL IN
outside_diameter0.969 INCHES NOMINAL IN
style_designatorFLANGE TYPE THREADED INTERNAL
features_providedSUBMERSIBLE
accommodation_typeLUGS END GRIPPING
retaining_device_typeCHAIN
system_for_which_designedNONPRESSURIZED
NSN5340-00-368-9601
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7954221 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
•
RETAINING DEVICE TYPE: CHAIN
•
OUTSIDE DIAMETER: 0.969 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
ACCOMMODATION TYPE: LUGS END GRIPPING
•
SYSTEM FOR WHICH DESIGNED: NONPRESSURIZED
•
FEATURES PROVIDED: SUBMERSIBLE
•
STYLE DESIGNATOR: FLANGE TYPE THREADED INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.938 INCHES NOMINAL IN
RETAINING DEVICE TYPECHAIN
OUTSIDE DIAMETER0.969 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
ACCOMMODATION TYPELUGS END GRIPPING
SYSTEM FOR WHICH DESIGNEDNONPRESSURIZED
FEATURES PROVIDEDSUBMERSIBLE
STYLE DESIGNATORFLANGE TYPE THREADED INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
FF-W-84Interchangeable
interchangeable cross-reference
interchangeable
29-30-50Interchangeable
interchangeable cross-reference
interchangeable
29305Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7954221?
7954221 is a CAP,FILLER OPENING.
What parts can replace 7954221?
There are 3 known substitutes for 7954221: FF-W-84, 29-30-50, 29305. Substitute compatibility should be verified for your specific system.
What is the NSN for 7954221?
7954221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-368-9601. 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