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Technical Data Sheet

254XR-1/2IN — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

254XR-1/2IN: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, case_style: SQUARE, seal_width: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, temp_rating: -40.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, exterior_color: RED, overall_length: 4.250 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-350-9451, 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
254XR-1/2IN
NSN: 4820-00-350-9451
FSC: 4820 — Valves, Nonpowered
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
case_styleSQUARE
seal_width0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
temp_rating-40.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
exterior_colorRED
overall_length4.250 INCHES MINIMUM IN
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
inside_diameter1.000 INCHES NOMINAL IN
style_designatorSINGLE SOCKET T
features_providedREMOVABLE HANDLE
surface_treatmentZINC OR CADMIUM CASE
flow_control_deviceBALL
NSN4820-00-350-9451
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 254XR-1/2IN · 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
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
SUBSTITUTES & CROSS-REFERENCES 9
350 1-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
830-1/2INReference document
Same NSN cross-reference
Reference document — Secondary reference
I409Reference document
Same NSN cross-reference
Reference document — Secondary reference
1021 1/2INCHReference document
Same NSN cross-reference
Reference document — Secondary reference
350Reference document
Same NSN cross-reference
Reference document — Secondary reference
506767Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 254XR-1/2IN?
254XR-1/2IN is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 254XR-1/2IN?
There are 9 known substitutes for 254XR-1/2IN: 350 1-2, 830-1/2IN, I409 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 254XR-1/2IN?
254XR-1/2IN is cataloged in the U.S. Government catalog under NSN 4820-00-350-9451. 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.