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31141-N1 — ADAPTER BUSHING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

31141-N1: ADAPTER BUSHING.

The ADAPTER BUSHING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922, width_across_flats: 1.367 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN, wrenching_facility_shape: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-255-2257, 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
31141-N1
NSN: 4730-01-255-2257
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922
width_across_flats1.367 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
wrenching_facility_shapeHEXAGON
NSN4730-01-255-2257
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 31141-N1 · 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
•
WIDTH ACROSS FLATS: 1.367 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
•
WRENCHING FACILITY SHAPE: HEXAGON
•
MATERIAL: COPPER ALLOY 922
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.367 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
WRENCHING FACILITY SHAPEHEXAGON
MATERIALCOPPER ALLOY 922
SUBSTITUTES & CROSS-REFERENCES 3
31141-NReference document
Same NSN cross-reference
Reference document — Design control — primary reference
1305-4IN-PC4Reference document
Same NSN cross-reference
Reference document — Secondary reference
1305-031 PC4,4.0INSame 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 31141-N1?
31141-N1 is a ADAPTER BUSHING.
What parts can replace 31141-N1?
There are 3 known substitutes for 31141-N1: 31141-N, 1305-4IN-PC4, 1305-031 PC4,4.0IN. Substitute compatibility should be verified for your specific system.
What is the NSN for 31141-N1?
31141-N1 is cataloged in the U.S. Government catalog under NSN 4730-01-255-2257. 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.