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108426-1 — COUPLING HALF,SELF-SEALING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

108426-1: COUPLING HALF,SELF-SEALING.

The COUPLING HALF,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: ALUMINUM BODY, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION, connection_style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS, style_designator: MALE COUPLING HALF, operating_pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-273-1069, 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
108426-1
NSN: 4730-01-273-1069
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 82340 — L3HARRIS TECHNOLOGIES, INC. DIV SPACE AND AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM BODY
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
connection_styleEXTERNAL SEAT FOR GASKET SEAL ALL ENDS
style_designatorMALE COUPLING HALF
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.312 INCHES ALL ENDS IN
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
NSN4730-01-273-1069
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 108426-1 · 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 1.312 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
THREAD CLASS: 3A ALL ENDS A
•
THREAD QUANTITY PER INCH: 12 ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL ALL ENDS
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE1.312 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
THREAD CLASS3A ALL ENDS A
THREAD QUANTITY PER INCH12 ALL ENDS
MATERIALALUMINUM BODY
THREAD SERIES DESIGNATORUN ALL ENDS
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 1
P0LNID16Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 108426-1?
108426-1 is a COUPLING HALF,SELF-SEALING.
What parts can replace 108426-1?
There is 1 known substitute for 108426-1: P0LNID16. Substitute compatibility should be verified for your specific system.
What is the NSN for 108426-1?
108426-1 is cataloged in the U.S. Government catalog under NSN 4730-01-273-1069. 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.