PartsTable
Technical Data Sheet
81.531.001 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The 81.531.001 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-057-1730, 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
81.531.001
NSN: 4820-01-057-1730
FSC: 4820
CAGE: 63681 — CROUZET CORPORATION (USA)
SPECIFICATIONS
Part Number81.531.001
NSN4820-01-057-1730
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 81.531.001 · 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
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/4-18 NPT FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
MATERIAL: ZINC ALLOY UNS Z33520 OR ZINC ALLOY UNS Z35531 BODY
FIRST END CONNECTION TYPE: THREADED INTERNAL PIPE
FURNISHED ITEMS: OUTLET PRESSURE GAGE
FIRST END STYLE DESIGNATOR: PLAIN
BODY STYLE: STRAIGHT THRU
MEDIA FOR WHICH DESIGNED: AIR
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/4-18 NPT FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
MATERIALZINC ALLOY UNS Z33520 OR ZINC ALLOY UNS Z35531 BODY
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FURNISHED ITEMSOUTLET PRESSURE GAGE
FIRST END STYLE DESIGNATORPLAIN
BODY STYLESTRAIGHT THRU
MEDIA FOR WHICH DESIGNEDAIR
FILTERNOT INCLUDED
OUTLET PRESSURE RANGE5.0 TO 125.0 CAMERA MOUNT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
340Interchangeable
interchangeable cross-reference
interchangeable
13101Interchangeable
interchangeable cross-reference
interchangeable
3501FPInterchangeable
interchangeable cross-reference
interchangeable
R00-02-00028728Interchangeable
Same NIIN cross-reference
interchangeable
R00-02-000Interchangeable
Same NIIN cross-reference
interchangeable
R03-02-000Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81.531.001?
81.531.001 is a 81.531.001.
What parts can replace 81.531.001?
There are 8 known substitutes for 81.531.001: 340, 13101, 3501FP and 5 more. Substitute compatibility should be verified for your specific system.
Is 81.531.001 still available?
81.531.001 is currently cancelled.
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