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803-5959304-X-65 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

803-5959304-X-65: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A EXTERNAL A, overall_length: 3.625 INCHES NOMINAL IN, thread_direction: RIGHT-HAND EXTERNAL, nominal_thread_size: 1.250 INCHES EXTERNAL IN, thread_series_designator: UNIFIED NATIONAL COARSE (UNC) EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-328-1827, 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
803-5959304-X-65
NSN: 4730-01-328-1827
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A EXTERNAL A
overall_length3.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size1.250 INCHES EXTERNAL IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) EXTERNAL
NSN4730-01-328-1827
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 803-5959304-X-65 · 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
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 1.250 INCHES EXTERNAL IN
•
THREAD CLASS: 2A EXTERNAL A
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) EXTERNAL
TECHNICAL CHARACTERISTICS
OVERALL LENGTH3.625 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE1.250 INCHES EXTERNAL IN
THREAD CLASS2A EXTERNAL A
MATERIALNICKEL ALLOY OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) EXTERNAL
SUBSTITUTES & CROSS-REFERENCES 2
5959304Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
256-6603687-VHBM-75Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 803-5959304-X-65?
803-5959304-X-65 is a PLUG,TUBE FITTING,THREADED.
What parts can replace 803-5959304-X-65?
There are 2 known substitutes for 803-5959304-X-65: 5959304, 256-6603687-VHBM-75. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-5959304-X-65?
803-5959304-X-65 is cataloged in the U.S. Government catalog under NSN 4730-01-328-1827. 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.