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7550478-A37 — VALVE HULL BACKUP

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7550478-A37: VALVE HULL BACKUP.

The VALVE HULL BACKUP is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-671-5305, 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
7550478-A37
NSN: 4820-01-671-5305
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number7550478-A37
NSN4820-01-671-5305
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7550478-A37 · 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
SUBSTITUTES & CROSS-REFERENCES 9
DF330613 ASSY 97C1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
G5470002-037Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-A336C1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H547-0001-A336C1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
DF330613 ASSY 97Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-A336Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7550478-A37?
7550478-A37 is a VALVE HULL BACKUP.
What parts can replace 7550478-A37?
There are 9 known substitutes for 7550478-A37: DF330613 ASSY 97C1, G5470002-037, 7383858-A336C1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7550478-A37?
7550478-A37 is cataloged in the U.S. Government catalog under NSN 4820-01-671-5305. This indicates validated use in U.S. government and defense supply chains.
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