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8954-004-139S — 8954-004-139S

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8954-004-139S: 8954-004-139S.

The 8954-004-139S is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-453-4369, 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
8954-004-139S
NSN: 4820-01-453-4369
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
Part Number8954-004-139S
NSN4820-01-453-4369
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8954-004-139S · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
PRESSURE RATING: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
TAPER MINOR DIAMETER: 1.743 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID WEDGE
•
TAPER MAJOR DIAMETER: 4.750 INCHES NOMINAL IN
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
TAPER LENGTH: 3.250 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: STEAM
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT3.500 INCHES NOMINAL IN
PRESSURE RATING200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
TAPER MINOR DIAMETER1.743 INCHES NOMINAL IN
STYLE DESIGNATORSOLID WEDGE
TAPER MAJOR DIAMETER4.750 INCHES NOMINAL IN
SEAT ANGLE45.0 DEGREES NOMINAL
TAPER LENGTH3.250 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDSTEAM
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 3
88319-12 ITEM 5 PN 8954-004-036SSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
88319-12 P/N 8954-004-031-SGSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8954-004-036-SSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8954-004-139S?
8954-004-139S is a 8954-004-139S.
What parts can replace 8954-004-139S?
There are 3 known substitutes for 8954-004-139S: 88319-12 ITEM 5 PN 8954-004-036S, 88319-12 P/N 8954-004-031-SG, 8954-004-036-S. Substitute compatibility should be verified for your specific system.
What is the NSN for 8954-004-139S?
8954-004-139S is cataloged in the U.S. Government catalog under NSN 4820-01-453-4369. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.