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D251-8 — PARTS KIT,DIAPHRAGM REPLACEMENT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D251-8: PARTS KIT,DIAPHRAGM REPLACEMENT.

PARTS KIT,DIAPHRAGM REPLACEMENT. Key specifications include special_features: 1/2 LITER BOTTOM SAMPLER, nonsupply_items_and_quantities: DIAPHRAGM 5; INSTRUCTION SHEET 1. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-036-1322, 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
D251-8
NSN: 4820-00-036-1322
NIINs: 000361322, 014553219, 014664950
FSC: 4820 — Valves, Nonpowered
CAGE: 7NJR2 — HENRY TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
special_features1/2 LITER BOTTOM SAMPLER
component_quantity6
nonsupply_items_and_quantitiesDIAPHRAGM 5; INSTRUCTION SHEET 1
NSN4820-00-036-1322
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D251-8 · 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
•
COMPONENT QUANTITY: 6
•
NONSUPPLY ITEMS AND QUANTITIES: DIAPHRAGM 5; INSTRUCTION SHEET 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY6
NONSUPPLY ITEMS AND QUANTITIESDIAPHRAGM 5; INSTRUCTION SHEET 1
SUBSTITUTES & CROSS-REFERENCES 1
D251-8BReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D251-8?
D251-8 is a PARTS KIT,DIAPHRAGM REPLACEMENT.
What parts can replace D251-8?
There is 1 known substitute for D251-8: D251-8B. Substitute compatibility should be verified for your specific system.
What is the NSN for D251-8?
D251-8 is cataloged in the U.S. Government catalog under NSN 4820-00-036-1322. 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.