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A51H9048-9 — VALVE,RELIEF,SPECIAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A51H9048-9: VALVE,RELIEF,SPECIAL.

The VALVE,RELIEF,SPECIAL is a the manufacturer industrial component. Key specifications include special_features: FLIGHT SAFETY CRITICAL, end_item_identification: AIRCRAFT MODEL F-14, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-182-4856, 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
A51H9048-9
NSN: 4820-01-182-4856
FSC: 4820 — Valves, Nonpowered
CAGE: 61174 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
special_featuresFLIGHT SAFETY CRITICAL
end_item_identificationAIRCRAFT MODEL F-14
criticality_code_justificationFEAT
NSN4820-01-182-4856
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A51H9048-9 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESFLIGHT SAFETY CRITICAL
END ITEM IDENTIFICATIONAIRCRAFT MODEL F-14
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51H9048-9?
A51H9048-9 is a VALVE,RELIEF,SPECIAL.
What is the NSN for A51H9048-9?
A51H9048-9 is cataloged in the U.S. Government catalog under NSN 4820-01-182-4856. 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.