PartsTable
Technical Data Sheet
Download PDF

29M112 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

29M112: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, seat_radius: 0.062 INCHES NOMINAL IN, taper_length: 0.562 INCHES NOMINAL IN, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.300 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.755 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-131-3709, 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
29M112
NSN: 4820-01-131-3709
FSC: 4820 — Valves, Nonpowered
CAGE: 21013 — METREX VALVE CORP. DBA METREX VALVE CORP (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_radius0.062 INCHES NOMINAL IN
taper_length0.562 INCHES NOMINAL IN
thread_class2A SINGLE THREADED PORTION A
thread_length0.300 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.755 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size1.625 INCHES SINGLE THREADED PORTION IN
under_flange_height0.395 INCHES NOMINAL IN
body_inside_diameter0.625 INCHES NOMINAL IN
taper_major_diameter1.250 INCHES NOMINAL IN
taper_minor_diameter0.625 INCHES NOMINAL IN
NSN4820-01-131-3709
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 29M112 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.405 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.755 INCHES NOMINAL IN
•
THREAD LENGTH: 0.300 INCHES NOMINAL SINGLE THREADED PORTION IN
•
TAPER MINOR DIAMETER: 0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
TAPER MAJOR DIAMETER: 1.250 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.625 INCHES SINGLE THREADED PORTION IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.405 INCHES NOMINAL IN
FLANGE DIAMETER1.755 INCHES NOMINAL IN
THREAD LENGTH0.300 INCHES NOMINAL SINGLE THREADED PORTION IN
TAPER MINOR DIAMETER0.625 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED FLANGED
TAPER MAJOR DIAMETER1.250 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.625 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.625 INCHES SINGLE THREADED PORTION IN
TAPER LENGTH0.562 INCHES NOMINAL IN
SEAT RADIUS0.062 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
NHPC-11080Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
NHPC-11080 P/N 34Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 29M112?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 29M112?
29M112 is a SEAT,VALVE.
What parts can replace 29M112?
There are 2 known substitutes for 29M112: NHPC-11080, NHPC-11080 P/N 34. Substitute compatibility should be verified for your specific system.
What is the NSN for 29M112?
29M112 is cataloged in the U.S. Government catalog under NSN 4820-01-131-3709. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 29M112

✓ 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.