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BUWEPSDWG2146437 — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

BUWEPSDWG2146437: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3B ALL ENDS, special_features: STEEL 8640,MEDIUM PARALLEL KNURL 0.005-0.010 DEEP ON OUTSIDE, style_designator: PLAIN, surface_treatment: PHOSPHATE OVERALL, nominal_thread_size: 0.313 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-021-3020, 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
BUWEPSDWG2146437
NSN: 4730-00-021-3020
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3B ALL ENDS
special_featuresSTEEL 8640,MEDIUM PARALLEL KNURL 0.005-0.010 DEEP ON OUTSIDE
style_designatorPLAIN
surface_treatmentPHOSPHATE OVERALL
nominal_thread_size0.313 INCHES ALL ENDS IN
nominal_overall_length2.125 INCHES IN
end_item_identificationNSN 1440-01-142-1679, COUPLING ASSY
thread_quantity_per_inch24 ALL ENDS
thread_series_designatorUNF ALL ENDS
material_document_and_classificationQQ-S-624,8640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-P-16232, TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-021-3020
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BUWEPSDWG2146437 · 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: MIL-P-16232, TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 2.125 INCHES IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624,8640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.313 INCHES ALL ENDS IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
THREAD CLASS: 3B ALL ENDS
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232, TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL OVERALL LENGTH2.125 INCHES IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624,8640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.313 INCHES ALL ENDS IN
SPECIAL FEATURESSTEEL 8640,MEDIUM PARALLEL KNURL 0.005-0.010 DEEP ON OUTSIDE
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS3B ALL ENDS
END ITEM IDENTIFICATIONNSN 1440-01-142-1679, COUPLING ASSY
THREAD QUANTITY PER INCH24 ALL ENDS
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)Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is BUWEPSDWG2146437?
BUWEPSDWG2146437 is a COUPLING,PIPE.
What is the NSN for BUWEPSDWG2146437?
BUWEPSDWG2146437 is cataloged in the U.S. Government catalog under NSN 4730-00-021-3020. 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.