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7979690 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7979690: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213 OR STEEL COMP 1215 OVERALL, seat_angle: 42.0 DEGREES FIRST END, thread_class: 2A SECOND END A, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, surface_treatment: TIN OVERALL, nominal_thread_size: 1.250 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-065-0718, 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
7979690
NSN: 4730-00-065-0718
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OR STEEL COMP 1215 OVERALL
seat_angle42.0 DEGREES FIRST END
thread_class2A SECOND END A
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
surface_treatmentTIN OVERALL
nominal_thread_size1.250 INCHES SECOND END IN
nominal_overall_length0.703 INCHES IN
thread_series_designatorUNF FIRST END
material_document_and_classificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
reduced_passage_nominal_inside_diameter0.280 INCHES FIRST END IN
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
surface_treatment_document_and_classificationMIL-T-10727,TYPE OPTIONAL MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-065-0718
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7979690 · 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-T-10727,TYPE OPTIONAL MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: INVERTED FLARE (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 0.703 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.280 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.625 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727,TYPE OPTIONAL MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL OVERALL LENGTH0.703 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.280 INCHES FIRST END IN
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
NOMINAL THREAD SIZE1.250 INCHES SECOND END IN
SEAT ANGLE42.0 DEGREES FIRST END
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7979690?
7979690 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What is the NSN for 7979690?
7979690 is cataloged in the U.S. Government catalog under NSN 4730-00-065-0718. 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.