PartsTable
Technical Data Sheet
Download PDF

B-402-1K — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B-402-1K: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_height: 0.500 INCHES NOMINAL IN, width_across_flats: 0.562 INCHES NOMINAL IN, nominal_tube_outside_diameter: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-094-7395, 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
B-402-1K
NSN: 4730-01-094-7395
NIINs: 010947395, 012099871
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 02570 — SWAGELOK CO DBA USE CAGE CODE 3T9T9 FOR CATALOGING (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_height0.500 INCHES NOMINAL IN
width_across_flats0.562 INCHES NOMINAL IN
nominal_tube_outside_diameter0.250 INCHES IN
NSN4730-01-094-7395
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B-402-1K · 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: 0.562 INCHES NOMINAL IN
•
NUT HEIGHT: 0.500 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
NUT HEIGHT0.500 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy B-402-1K?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is B-402-1K?
B-402-1K is a NUT,TUBE COUPLING.
What is the NSN for B-402-1K?
B-402-1K is cataloged in the U.S. Government catalog under NSN 4730-01-094-7395. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — B-402-1K

✓ 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.