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Technical Data Sheet
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635S2IN — WYE,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

635S2IN: WYE,QUICK DISCONNECT.

The WYE,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: COTTON FILTERING MEDIUM, design_type: NONREUSABLE, corner_shape: SQUARE ALL CORNERS, flow_direction: INSIDE OUT, overall_length: 1.0650 INCHES NOMINAL IN, body_overall_length: 22.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-121-8485, 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
635S2IN
NSN: 4730-00-121-8485
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81718 — OPW FUELING COMPONENTS INC. DIV OPW FUELING COMPONENTS (USA)
SPECIFICATIONS
materialCOTTON FILTERING MEDIUM
design_typeNONREUSABLE
corner_shapeSQUARE ALL CORNERS
flow_directionINSIDE OUT
overall_length1.0650 INCHES NOMINAL IN
body_overall_length22.500 INCHES NOMINAL IN
body_inside_diameter1.5000 INCHES NOMINAL IN
body_outside_diameter1.7500 INCHES NOMINAL IN
media_for_which_designedANY ACCEPTABLE
NSN4730-00-121-8485
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 635S2IN · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
63SS-2X2X2ALReference document
Same NSN cross-reference
Reference document — Secondary reference
319K2ALReference document
Same NSN cross-reference
Reference document — Secondary reference
S2070Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 635S2IN?
635S2IN is a WYE,QUICK DISCONNECT.
What parts can replace 635S2IN?
There are 3 known substitutes for 635S2IN: 63SS-2X2X2AL, 319K2AL, S2070. Substitute compatibility should be verified for your specific system.
What is the NSN for 635S2IN?
635S2IN is cataloged in the U.S. Government catalog under NSN 4730-00-121-8485. 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.