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7M637 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M637: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, flow_angle: 45.0 DEGREES, leg_length: 2.562 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES ALL ENDS, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-184-8322, 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
7M637
NSN: 4730-00-184-8322
NIINs: 001848322, 002772464, 002775107, 002788868, 002789373, 002790116, 003875008, 006846915, 006847451, 011407510, 011419661, 011419664, 011419665, 011419666, 011419668, 011419670, 011419671, 011419672, 011431833, 011460198, 011498061, 011506489, 011506490, 011506492, 011506897, 011529195, 011529392, 011555045, 011578435, 011589691, 011598956, 011614115, 012616559, 012678233, 013232066, 013232072, 013433258, 013497759, 013863244
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
flow_angle45.0 DEGREES
leg_length2.562 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES ALL ENDS
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresCOATED WITH ALUM FOR CORROSION PREVENTION AND CONDUCTIVITY,USING THE ION VAPOR DEPOSITION PROCESS
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
surface_treatmentALUMINUM OVERALL
nominal_thread_size1.312 INCHES ALL ENDS IN
NSN4730-00-184-8322
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M637 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
LEG LENGTH: 1.344 INCHES NOMINAL SECOND END IN
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
LEG LENGTH1.344 INCHES NOMINAL SECOND END IN
LEG LENGTH2.094 INCHES NOMINAL FIRST END IN
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END BULKHEAD IN
SPECIFICATION/STANDARD DATA81343-AS1038 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUBSTITUTES & CROSS-REFERENCES 9
AS1038D0808VReference document
Same NSN cross-reference
Reference document — Secondary reference
AS1038Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN833-8DReference document
Same NSN cross-reference
Reference document — Secondary reference
L5340049Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
4730PL1555817Reference document
Same NSN cross-reference
Reference document — Informative reference only
10111296Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M637?
7M637 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 7M637?
There are 9 known substitutes for 7M637: AS1038D0808V, AS1038, AN833-8D and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M637?
7M637 is cataloged in the U.S. Government catalog under NSN 4730-00-184-8322. This indicates validated use in U.S. government and defense supply chains.
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