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ASC1478874 — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ASC1478874: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include special_features: 1/2 INCH. SOCKET; 1 UNIT PER ASSEMBLY IN, nominal_thread_size: 0.500 INCHES ALL ENDS IN, end_item_identification: SEWAGE UNIT ASSEMBLY, thread_series_designator: NPT ALL ENDS, part_name_assigned_by_controlling_agency: UNION, TRANSITION.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-481-1689, 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
ASC1478874
NSN: 4730-01-481-1689
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: Z4779 — ASC PTY LTD (AUS)
SPECIFICATIONS
special_features1/2 INCH. SOCKET; 1 UNIT PER ASSEMBLY IN
nominal_thread_size0.500 INCHES ALL ENDS IN
end_item_identificationSEWAGE UNIT ASSEMBLY
thread_series_designatorNPT ALL ENDS
part_name_assigned_by_controlling_agencyUNION, TRANSITION
NSN4730-01-481-1689
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ASC1478874 · 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 THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
SPECIAL FEATURES1/2 INCH. SOCKET; 1 UNIT PER ASSEMBLY IN
PART NAME ASSIGNED BY CONTROLLING AGENCYUNION, TRANSITION
END ITEM IDENTIFICATIONSEWAGE UNIT ASSEMBLY
THREAD SERIES DESIGNATORNPT 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
3500136-001Reference 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 ASC1478874?
ASC1478874 is a COUPLING,PIPE.
What parts can replace ASC1478874?
There is 1 known substitute for ASC1478874: 3500136-001. Substitute compatibility should be verified for your specific system.
What is the NSN for ASC1478874?
ASC1478874 is cataloged in the U.S. Government catalog under NSN 4730-01-481-1689. 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.