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18271 — ADAPTER,STRAIGHT,PIPE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

18271: ADAPTER,STRAIGHT,PIPE TO HOSE.

The ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 3.125 INCHES NOMINAL IN, head_height: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN, grip_diameter: 0.555 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN, thread_length: 4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-277-6845, 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
18271
NSN: 4730-00-277-6845
NIINs: 002776845, 003147140, 006226837, 012203081, 012557810, 012818414, 015531327
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96046 — CRANE PUMPS & SYSTEMS PFT CORP DIV CRANE PUMPS & SYSTEM PFT CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length3.125 INCHES NOMINAL IN
head_height0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
grip_diameter0.555 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
thread_length4.500 INCHES NOMINAL IN
fastener_length4.400 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
special_featuresGRADE 8 PLAIN FINISH HEX CAP SCREW
thread_directionRIGHT-HAND
width_between_flats0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
end_item_identificationJERRV 4X4 EOD, 2355-01-532-2174
thread_quantity_per_inch18
NSN4730-00-277-6845
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 18271 · 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
SUBSTITUTES & CROSS-REFERENCES 3
295Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILC52404Reference document
Same NSN cross-reference
Reference document — Identification reference
2S383Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18271?
18271 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 18271?
There are 3 known substitutes for 18271: 295, MILC52404, 2S383. Substitute compatibility should be verified for your specific system.
What is the NSN for 18271?
18271 is cataloged in the U.S. Government catalog under NSN 4730-00-277-6845. This indicates validated use in U.S. government and defense supply chains.
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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.