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641275 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

641275: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303SE OVERALL, surface_treatment: PASSIVATE OVERALL, nominal_overall_length: 1.149 INCHES IN, end_item_identification: J-52 ENGINE, material_document_and_classification: AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, surface_treatment_document_and_classification: PWA 830 MFR REF SINGLE TREATMENT RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-348-9020, 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
641275
NSN: 4730-01-348-9020
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 303SE OVERALL
surface_treatmentPASSIVATE OVERALL
nominal_overall_length1.149 INCHES IN
end_item_identificationJ-52 ENGINE
material_document_and_classificationAMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationPWA 830 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-348-9020
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 641275 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: PWA 830 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 1.149 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 303SE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPWA 830 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NOMINAL OVERALL LENGTH1.149 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONJ-52 ENGINE
MATERIALSTEEL COMP 303SE OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
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 641275?
641275 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What is the NSN for 641275?
641275 is cataloged in the U.S. Government catalog under NSN 4730-01-348-9020. 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.