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7M637BT-5D — NIPPLE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M637BT-5D: NIPPLE,TUBE.

The NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: FLARED W/ BULKHEAD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-343-3258, 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
7M637BT-5D
NSN: 4730-01-343-3258
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14798 — DESIGNED METAL CONNECTIONS INC DBA PERMASWAGE USA DIV PERMASWAGE, A PCC COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle37.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
style_designatorFLARED W/ BULKHEAD THREAD
surface_treatmentALUMINUM AND CHROMATE OVERALL
nominal_thread_size0.500 INCHES ALL ENDS IN
nominal_overall_length2.047 INCHES IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
nominal_outside_diameter_tube_accommodated0.313 INCHES ALL ENDS IN
surface_treatment_document_and_classificationMIL-C-83488,CL3,TYII MIL SPEC 1ST TREATMENT RESPONSE OVERALL
NSN4730-01-343-3258
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M637BT-5D · 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-C-83488,CL3,TYII MIL SPEC 1ST TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.047 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ BULKHEAD THREAD
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.313 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83488,CL3,TYII MIL SPEC 1ST TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH2.047 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARED W/ BULKHEAD THREAD
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END BULKHEAD IN
SEAT ANGLE37.0 DEGREES ALL ENDS
SURFACE TREATMENTALUMINUM AND CHROMATE 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 1
7M637Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 7M637BT-5D?
7M637BT-5D is a NIPPLE,TUBE.
What parts can replace 7M637BT-5D?
There is 1 known substitute for 7M637BT-5D: 7M637. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M637BT-5D?
7M637BT-5D is cataloged in the U.S. Government catalog under NSN 4730-01-343-3258. This indicates validated use in U.S. government and defense supply chains.
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