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632E256PC21 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

632E256PC21: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) FIRST END, special_features: ULTRSONIC CLEAN,AG PLATING,NUT W/KRYTOX, nominal_thread_size: 0.250 INCHES SECOND END IN, nominal_outside_diameter_tube_accommodated: 0.250 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-554-7177, 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
632E256PC21
NSN: 4730-01-554-7177
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 24374 — BECHTEL TECHNICAL SERVICES INC MACHINERY APPARATUS OPN (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
special_featuresULTRSONIC CLEAN,AG PLATING,NUT W/KRYTOX
nominal_thread_size0.250 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-554-7177
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 632E256PC21 · 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
KEY FEATURES
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.250 INCHES SECOND END IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
SPECIAL FEATURESULTRSONIC CLEAN,AG PLATING,NUT W/KRYTOX
MATERIALSTEEL CORROSION RESISTING OVERALL
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 632E256PC21?
632E256PC21 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What is the NSN for 632E256PC21?
632E256PC21 is cataloged in the U.S. Government catalog under NSN 4730-01-554-7177. 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.