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JMS-7181 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

JMS-7181: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY BODY, flange_diameter: 1.00 INCHES NOMINAL IN, style_designator: FAUCET, under_flange_height: 0.50 INCHES NOMINAL IN, body_inside_diameter: 0.375 INCHES NOMINAL IN, material_document_and_classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE BODY. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-660-1436, 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
JMS-7181
NSN: 4820-01-660-1436
FSC: 4820 — Valves, Nonpowered
CAGE: 007F8 — CLARK-RELIANCE LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY BODY
flange_diameter1.00 INCHES NOMINAL IN
style_designatorFAUCET
under_flange_height0.50 INCHES NOMINAL IN
body_inside_diameter0.375 INCHES NOMINAL IN
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE BODY
NSN4820-01-660-1436
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: JMS-7181 · 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 DIAMETER: 1.00 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FAUCET
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
BODY INSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.50 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY BODY
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER1.00 INCHES NOMINAL IN
STYLE DESIGNATORFAUCET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE BODY
BODY INSIDE DIAMETER0.375 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.50 INCHES NOMINAL IN
MATERIALNICKEL ALLOY BODY
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 JMS-7181?
JMS-7181 is a SEAT,VALVE.
What is the NSN for JMS-7181?
JMS-7181 is cataloged in the U.S. Government catalog under NSN 4820-01-660-1436. 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.