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A38161 — LOCKNUT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A38161: LOCKNUT,PIPE.

The LOCKNUT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_series: NPSI, thread_direction: RIGHT-HAND, surface_treatment: CADMIUM AND DICHROMATE OVERALL, width_across_flats: 0.750 INCHES NOMINAL IN, nominal_thread_size: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-414-8397, 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
A38161
NSN: 4730-00-414-8397
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_seriesNPSI
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND DICHROMATE OVERALL
width_across_flats0.750 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch18
NSN4730-00-414-8397
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A38161 · 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: 0.750 INCHES NOMINAL IN
•
THREAD SERIES: NPSI
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
SURFACE TREATMENT: CADMIUM AND DICHROMATE OVERALL
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
THREAD SERIESNPSI
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENTCADMIUM AND DICHROMATE OVERALL
THREAD QUANTITY PER INCH18
MATERIALSTEEL OVERALL
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
103-06604Reference 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 A38161?
A38161 is a LOCKNUT,PIPE.
What parts can replace A38161?
There is 1 known substitute for A38161: 103-06604. Substitute compatibility should be verified for your specific system.
What is the NSN for A38161?
A38161 is cataloged in the U.S. Government catalog under NSN 4730-00-414-8397. This indicates validated use in U.S. government and defense supply chains.
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