PartsTable
Technical Data Sheet
L1-1 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

INDICATOR,BEARING-DISTANCE-HEADI. Key specifications include plated: NOT PLATED, cushion: NOT INCLUDED, material: PAPER, end_style: SHORT HOOK, END OVERALL, base_style: SURGICAL SCREW, body_style: THREADED BUSHING MOUNTED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-028-7021, 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
L1-1
NSN: 4730-00-028-7021
FSC: 4730
CAGE: 15823 — UNIFLITE INC (USA)
SPECIFICATIONS
platedNOT PLATED
cushionNOT INCLUDED
materialPAPER
end_styleSHORT HOOK, END OVERALL
base_styleSURGICAL SCREW
body_styleTHREADED BUSHING MOUNTED
body_width2.759 INCHES NOMINAL IN
bulb_styleT (TUBULAR)
roll_width4.000 INCHES NOMINAL IN
seat_angle30.0 DEGREES FIRST END
usage_formROLL
body_length2.390 INCHES NOMINAL IN
NSN4730-00-028-7021
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: L1-1 · 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
SEAT ANGLE: 30.0 DEGREES FIRST END
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: NPTF FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.250 INCHES SECOND END IN
NOMINAL OVERALL LENGTH: 1.594 INCHES IN
MATERIAL: COPPER ALLOY OVERALL
CONNECTION STYLE: INVERTED FLARE (PIPE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONBRF ENGINE, AIRCRAFT, TF39-GE-1 (C-5A);2320-01-442-1940,TRUCK,CBT,(COMMAND BRIDGE TRANSPORTER),3990-01-444-6174 BITUM DISTRIBUTOR A
SEAT ANGLE30.0 DEGREES FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPTF FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.250 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.594 INCHES IN
MATERIALCOPPER ALLOY OVERALL
CONNECTION STYLEINVERTED FLARE (PIPE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
L-11Interchangeable
interchangeable cross-reference
interchangeable
111Interchangeable
interchangeable cross-reference
interchangeable
55-22119-67Interchangeable
interchangeable cross-reference
interchangeable
11BBInterchangeable
interchangeable cross-reference
interchangeable
MIL-K-21120Interchangeable
interchangeable cross-reference
interchangeable
L-11-2591Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy L1-1?
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 L1-1?
L1-1 is a INDICATOR,BEARING-DISTANCE-HEADI.
What parts can replace L1-1?
There are 27 known substitutes for L1-1: L-11, 111, 55-22119-67 and 24 more. Substitute compatibility should be verified for your specific system.
Is L1-1 still available?
L1-1 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — L1-1