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B1149PJ — RETAINER,SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B1149PJ: RETAINER,SEAT,VALVE.

The RETAINER,SEAT,VALVE is a the manufacturer industrial component. Key specifications include overall_length: 2.500 INCHES NOMINAL IN, inside_diameter: 1.250 INCHES NOMINAL IN, outside_diameter: 2.875 INCHES NOMINAL IN, nominal_thread_size: 2.875 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-107-4273, 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
B1149PJ
NSN: 4820-01-107-4273
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
overall_length2.500 INCHES NOMINAL IN
inside_diameter1.250 INCHES NOMINAL IN
outside_diameter2.875 INCHES NOMINAL IN
nominal_thread_size2.875 INCHES IN
NSN4820-01-107-4273
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B1149PJ · 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
•
OUTSIDE DIAMETER: 2.875 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 2.875 INCHES IN
•
INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.875 INCHES NOMINAL IN
OVERALL LENGTH2.500 INCHES NOMINAL IN
NOMINAL THREAD SIZE2.875 INCHES IN
INSIDE DIAMETER1.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
D1119 PIECE 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
B1124Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B1149PJ?
B1149PJ is a RETAINER,SEAT,VALVE.
What parts can replace B1149PJ?
There are 2 known substitutes for B1149PJ: D1119 PIECE 3, B1124. Substitute compatibility should be verified for your specific system.
What is the NSN for B1149PJ?
B1149PJ is cataloged in the U.S. Government catalog under NSN 4820-01-107-4273. 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.