PartsTable
Technical Data Sheet
Download PDF

161-F-8 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

161-F-8: 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: 1.000 INCHES NOMINAL IN, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2B, thread_series: UNEF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-277-1329, 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
161-F-8
NSN: 4730-01-277-1329
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
nut_styleTUBE COUPLING
nut_height1.000 INCHES NOMINAL IN
seat_angle45.0 DEGREES NOMINAL
thread_class2B
thread_seriesUNEF
thread_directionRIGHT-HAND
fabrication_methodFORGED OR MACHINED
width_across_flats0.812 INCHES NOMINAL IN
nominal_thread_size0.688 INCHES IN
smallest_inside_diameter0.506 INCHES NOMINAL IN
thread_quantity_per_inch20
NSN4730-01-277-1329
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 161-F-8 · 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: 0.812 INCHES NOMINAL IN
•
THREAD SERIES: UNEF
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.688 INCHES IN
•
NUT HEIGHT: 1.000 INCHES NOMINAL IN
•
NUT STYLE: TUBE COUPLING
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.812 INCHES NOMINAL IN
THREAD SERIESUNEF
SEAT ANGLE45.0 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.688 INCHES IN
NUT HEIGHT1.000 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
THREAD CLASS2B
THREAD QUANTITY PER INCH20
MATERIALCOPPER ALLOY 360 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 2
1611X8Reference document
Same NSN cross-reference
Reference document — Secondary reference
21611X8Reference 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
Ready to buy 161-F-8?
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 161-F-8?
161-F-8 is a NUT,TUBE COUPLING.
What parts can replace 161-F-8?
There are 2 known substitutes for 161-F-8: 1611X8, 21611X8. Substitute compatibility should be verified for your specific system.
What is the NSN for 161-F-8?
161-F-8 is cataloged in the U.S. Government catalog under NSN 4730-01-277-1329. 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 — 161-F-8