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N20954A — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N20954A: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include nominal_width: 2.240 INCHES ALL ENDS IN, nominal_length: 2.390 INCHES ALL ENDS IN, special_features: VALVE SIZE 3/8IN IN, style_designator: STRAIGHT THRU, valve_operation_method: AUTOMATIC, end_item_identification: TRUCK,5-TON M939 SERIES,2320012064089. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-478-4650, 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
N20954A
NSN: 4820-01-478-4650
FSC: 4820 — Valves, Nonpowered
CAGE: 06721 — HALDEX BRAKE PRODUCTS CORPORATION (USA)
SPECIFICATIONS
nominal_width2.240 INCHES ALL ENDS IN
nominal_length2.390 INCHES ALL ENDS IN
special_featuresVALVE SIZE 3/8IN IN
style_designatorSTRAIGHT THRU
valve_operation_methodAUTOMATIC
end_item_identificationTRUCK,5-TON M939 SERIES,2320012064089
NSN4820-01-478-4650
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N20954A · 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
•
NOMINAL LENGTH: 2.390 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL WIDTH: 2.240 INCHES ALL ENDS IN
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH2.390 INCHES ALL ENDS IN
STYLE DESIGNATORSTRAIGHT THRU
SPECIAL FEATURESVALVE SIZE 3/8IN IN
NOMINAL WIDTH2.240 INCHES ALL ENDS IN
END ITEM IDENTIFICATIONTRUCK,5-TON M939 SERIES,2320012064089
VALVE OPERATION METHODAUTOMATIC
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N20954A?
N20954A is a VALVE,CHECK.
What is the NSN for N20954A?
N20954A is cataloged in the U.S. Government catalog under NSN 4820-01-478-4650. 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.