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10108644 — COUPLING,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

10108644: COUPLING,BOSS.

The COUPLING,BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL (BOSS) ALL ENDS, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-128-9108, 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
10108644
NSN: 4730-01-128-9108
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL (BOSS) ALL ENDS
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.438 INCHES ALL ENDS IN
nominal_overall_length1.700 INCHES IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-128-9108
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10108644 · 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: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.700 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH1.700 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SPECIAL FEATURES1ST END BULKHEAD 0.750 INS UNJF,CL 3B; FOR USEW/SHIELDED MILD DETONATINGCORD; ADDITIONAL TWO COATSMIL-P-23377 EPOXY PRIMER APPLIED PER P.S. 13646 ON EXTERNAL SURFACE ONLY,EXCLUDING THREADS; 0.070 IN. HOLE ON HEX IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3B ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 2
7M486Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
7M486-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10108644?
10108644 is a COUPLING,BOSS.
What parts can replace 10108644?
There are 2 known substitutes for 10108644: 7M486, 7M486-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 10108644?
10108644 is cataloged in the U.S. Government catalog under NSN 4730-01-128-9108. 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.