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9B-3638 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

9B-3638: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include length: 3.156 INCHES NOMINAL IN, diameter: 2.312 INCHES NOMINAL IN, material: ALUMINUM HOUSING, drive_type: DIRECT, air_flow_rate: 60.0 CUBIC FEET PER MINUTE MAXIMUM, flow_direction: OUTWARD. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-311-9182, 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
9B-3638
NSN: 4820-00-311-9182
FSC: 4820 — Valves, Nonpowered
CAGE: 02413 — KERSEY / AMERICAN LAFRANCE A DIV OF FIGGIE INTERNATIONAL INC (USA)
SPECIFICATIONS
length3.156 INCHES NOMINAL IN
diameter2.312 INCHES NOMINAL IN
materialALUMINUM HOUSING
quantity1
drive_typeDIRECT
air_flow_rate60.0 CUBIC FEET PER MINUTE MAXIMUM
flow_directionOUTWARD
inclosure_typeFULLY INCLOSED
prime_mover_typeELECTRIC MOTOR
style_designatorFIXED
speed_adjustmentsSINGLE SPEED
surface_treatmentIRIDIUM OVERALL
NSN4820-00-311-9182
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9B-3638 · 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 8
975527R91Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
P-2323Reference document
Same NSN cross-reference
Reference document — Secondary reference
1520283ABReference document
Same NSN cross-reference
Reference document — Secondary reference
330-2023844Reference document
Same NSN cross-reference
Reference document — Secondary reference
223891Reference document
Same NSN cross-reference
Reference document — Secondary reference
5967GXReference document
Same NSN cross-reference
Reference document — Secondary 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 9B-3638?
9B-3638 is a VALVE,CHECK.
What parts can replace 9B-3638?
There are 8 known substitutes for 9B-3638: 975527R91, P-2323, 1520283AB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9B-3638?
9B-3638 is cataloged in the U.S. Government catalog under NSN 4820-00-311-9182. 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.