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540-0774-1 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

540-0774-1: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include end_item_identification: C-17 AIRCRAFT, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY PART NUMBER. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-437-0444, 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
540-0774-1
NSN: 4820-01-437-0444
FSC: 4820 — Valves, Nonpowered
CAGE: 00672 — GRIMES AEROSPACE CO (USA)
SPECIFICATIONS
end_item_identificationC-17 AIRCRAFT
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY PART NUMBER
NSN4820-01-437-0444
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 540-0774-1 · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY PART NUMBER
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONC-17 AIRCRAFT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY PART NUMBER
SUBSTITUTES & CROSS-REFERENCES 1
1B7439Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 540-0774-1?
540-0774-1 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 540-0774-1?
There is 1 known substitute for 540-0774-1: 1B7439. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-0774-1?
540-0774-1 is cataloged in the U.S. Government catalog under NSN 4820-01-437-0444. 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.