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M131001 — VALVE,PRESSURE EQUALIZING,GASEOU

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

M131001: VALVE,PRESSURE EQUALIZING,GASEOU.

VALVE,PRESSURE EQUALIZING,GASEOU. This part is cataloged in the U.S. Government catalog under NSN 4820-01-138-8953, 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
M131001
NSN: 4820-01-138-8953
NIINs: 011388953, 012957050, 014623768
FSC: 4820 — Valves, Nonpowered
CAGE: 54278 — ERIE ENGINEERED PRODUCTS INC (USA)
SPECIFICATIONS
Part NumberM131001
NSN4820-01-138-8953
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: M131001 · 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
•
FLOW CONTROL DEVICE: DISK, FLAT
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
BODY STYLE: SINGLE CONNECTION, STRAIGHT FLOW
•
FIRST END THREAD CLASS: 2A A
•
FIRST END STYLE DESIGNATOR: PLAIN
•
END CONNECTION QUANTITY: 1
•
OPERATING PRESSURE: 2.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
VALVE VENTING DESIGN TYPE: ATMOSPHERIC
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK, FLAT
FIRST END THREAD DIRECTIONRIGHT-HAND
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
FIRST END THREAD CLASS2A A
FIRST END STYLE DESIGNATORPLAIN
END CONNECTION QUANTITY1
OPERATING PRESSURE2.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
VALVE VENTING DESIGN TYPEATMOSPHERIC
DISK LOADING METHODSPRING
FIRST END CONNECTION TYPETHREADED EXTERNAL TUBE
SUBSTITUTES & CROSS-REFERENCES 1
40-01006-01Reference 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
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FREQUENTLY ASKED QUESTIONS
What is M131001?
M131001 is a VALVE,PRESSURE EQUALIZING,GASEOU.
What parts can replace M131001?
There is 1 known substitute for M131001: 40-01006-01. Substitute compatibility should be verified for your specific system.
What is the NSN for M131001?
M131001 is cataloged in the U.S. Government catalog under NSN 4820-01-138-8953. 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.