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6780975-4 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6780975-4: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nominal_length: 1.340 INCHES ALL ENDS IN, nominal_thread_size: 0.375 INCHES SECOND END IN, nominal_overall_length: 1.340 INCHES IN, nominal_pipe_size_accommodated: 0.375 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-459-3733, 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
6780975-4
NSN: 4730-01-459-3733
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nominal_length1.340 INCHES ALL ENDS IN
special_featuresHEX HEAD SIZE 0.750;THREAD SIZE ARE 3/8X18 NPT (2ND END) AND 11/16X16 UNF 2A (1ST END);OVER ALL LENGTH 1.340IN;END ITEM 1740-01-253-8064 A
nominal_thread_size0.375 INCHES SECOND END IN
nominal_overall_length1.340 INCHES IN
nominal_pipe_size_accommodated0.375 INCHES SECOND END IN
NSN4730-01-459-3733
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6780975-4 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES SECOND END IN
•
NOMINAL LENGTH: 1.340 INCHES ALL ENDS IN
•
NOMINAL OVERALL LENGTH: 1.340 INCHES IN
•
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES SECOND END IN
NOMINAL LENGTH1.340 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH1.340 INCHES IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
SPECIAL FEATURESHEX HEAD SIZE 0.750;THREAD SIZE ARE 3/8X18 NPT (2ND END) AND 11/16X16 UNF 2A (1ST END);OVER ALL LENGTH 1.340IN;END ITEM 1740-01-253-8064 A
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
6433-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6780975-4?
6780975-4 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 6780975-4?
There is 1 known substitute for 6780975-4: 6433-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 6780975-4?
6780975-4 is cataloged in the U.S. Government catalog under NSN 4730-01-459-3733. 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.