PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 11639-1
11639-1 ✓ 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

The PULLEY,GROOVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY INNER LAYER, corner_shape: SQUARE OUTSIDE RIGHT CORNER, hole_diameter: 0.1875 INCHES NOMINAL FIRST IN, overall_length: 1.2400 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM IN, surface_finish: 14.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY, style_designator: SPLIT, PLAIN, NO OUTSIDE FLANGES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-554-7408, 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
11639-1
NSN: 4730-00-554-7408
FSC: 4730
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY INNER LAYER
corner_shapeSQUARE OUTSIDE RIGHT CORNER
hole_diameter0.1875 INCHES NOMINAL FIRST IN
overall_length1.2400 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM IN
surface_finish14.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
style_designatorSPLIT, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.3190 INCHES MINIMUM AND 1.3220 INCHES MAXIMUM IN
body_outside_diameter1.4490 INCHES MINIMUM AND 1.4505 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity1 HOLE
NSN4730-00-554-7408
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 11639-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2207-489Interchangeable
interchangeable cross-reference
interchangeable
116391Interchangeable
interchangeable cross-reference
interchangeable
11639Interchangeable
interchangeable cross-reference
interchangeable
PC116391Interchangeable
Same NIIN cross-reference
interchangeable
WW-P-471Interchangeable
Same NIIN cross-reference
interchangeable
WWP471CQQBUAInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 11639-1?
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 11639-1?
11639-1 is a PULLEY,GROOVE.
What parts can replace 11639-1?
There are 6 known substitutes for 11639-1: 2207-489, 116391, 11639 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11639-1?
11639-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-554-7408. This indicates validated use in U.S. government and defense supply chains.
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 — 11639-1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026