PartsTable
Technical Data Sheet
Download PDF

41-FS-03 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

41-FS-03: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.500 INCHES NOMINAL IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 2B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-014-4307, 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
41-FS-03
NSN: 4730-00-014-4307
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
nut_styleTUBE COUPLING
nut_height0.500 INCHES NOMINAL IN
seat_angle45.00 DEGREES NOMINAL
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
length_to_shoulder0.219 INCHES NOMINAL IN
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
smallest_inside_diameter0.130 INCHES NOMINAL IN
thread_quantity_per_inch24
NSN4730-00-014-4307
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 41-FS-03 · 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
•
LENGTH TO SHOULDER: 0.219 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
SPECIFICATION/STANDARD DATA: 96905-MS39166 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.219 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE45.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
SPECIFICATION/STANDARD DATA96905-MS39166 GOVERNMENT STANDARD
NUT HEIGHT0.500 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
SUBSTITUTES & CROSS-REFERENCES 6
21110X3Reference document
Same NSN cross-reference
Reference document — Secondary reference
144307Reference document
Same NSN cross-reference
Reference document — Secondary reference
910906Reference document
Same NSN cross-reference
Reference document — Secondary reference
2S416Reference document
Same NSN cross-reference
Reference document — Secondary reference
1110X3Reference document
Same NSN cross-reference
Reference document — Secondary reference
B41S3-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 41-FS-03?
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 41-FS-03?
41-FS-03 is a NUT,TUBE COUPLING.
What parts can replace 41-FS-03?
There are 6 known substitutes for 41-FS-03: 21110X3, 144307, 910906 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 41-FS-03?
41-FS-03 is cataloged in the U.S. Government catalog under NSN 4730-00-014-4307. 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 — 41-FS-03

✓ 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.