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Technical Data Sheet
PartsTable / COMPONENT / 330721
330721 ✓ 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 VALVE ASSEMBLY,MANIFOLD is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: COPPER ALLOY BODY, body_width: 16.065 INCHES NOMINAL IN, body_height: 24.500 INCHES NOMINAL IN, body_length: 22.750 INCHES NOMINAL IN, temp_rating: 200.0 FAHRENHEIT MAXIMUM DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-133-0734, 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
330721
NSN: 5340-00-133-0734
FSC: 5340
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialCOPPER ALLOY BODY
body_width16.065 INCHES NOMINAL IN
body_height24.500 INCHES NOMINAL IN
body_length22.750 INCHES NOMINAL IN
temp_rating200.0 FAHRENHEIT MAXIMUM DEGF
mounting_padNOT INCLUDED
mounting_typeBRACKET W/DRILLED HOLE BOTTOM SIDE
overall_width1.250 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_length8.750 INCHES NOMINAL IN
mounting_methodTERMINAL SINGLE GROUP
NSN5340-00-133-0734
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 330721 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
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: CURVED ARCH
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
INSIDE DIAMETER/ARCH LENGTH: 6.000 INCHES NOMINAL IN
•
MOUNTING HOLE SIZE: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORCURVED ARCH
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
SPECIAL FEATURESPAINTED RED
INSIDE DIAMETER/ARCH LENGTH6.000 INCHES NOMINAL IN
OVERALL LENGTH8.750 INCHES NOMINAL IN
OVERALL WIDTH1.250 INCHES NOMINAL IN
MOUNTING HOLE SIZE0.438 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
MATERIAL THICKNESS0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
905963-0001Interchangeable
interchangeable cross-reference
interchangeable
0042Z1027Interchangeable
interchangeable cross-reference
interchangeable
330721Interchangeable
interchangeable cross-reference
interchangeable
LL-H37-0579Interchangeable
interchangeable cross-reference
interchangeable
33072-1 REVCInterchangeable
interchangeable cross-reference
interchangeable
33072Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 330721?
330721 is a VALVE ASSEMBLY,MANIFOLD.
What parts can replace 330721?
There are 6 known substitutes for 330721: 905963-0001, 0042Z1027, 330721 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 330721?
330721 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-133-0734. 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