PartsTable
Technical Data Sheet
Download PDF

91-2629 — TANK,EXPANSION,RADIATOR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

91-2629: TANK,EXPANSION,RADIATOR.

The TANK,EXPANSION,RADIATOR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-00-266-2637, 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
91-2629
NSN: 4730-00-266-2637
NIINs: 002662637, 010244300
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
Part Number91-2629
NSN4730-00-266-2637
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 91-2629 · 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
•
FURNISHED ITEMS AND QUANTITY: 2 TUBE COUPLING NUT W/SLEEVE
•
CONNECTION STYLE: DOUBLE COMPRESSION (TUBE) FIRST END
•
SEAT NOMINAL RADIUS: 0.062 INCHES FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE
CONNECTION STYLEDOUBLE COMPRESSION (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEDOUBLE COMPRESSION (TUBE) THIRD END
SEAT NOMINAL RADIUS0.062 INCHES FIRST END IN
SEAT NOMINAL RADIUS0.062 INCHES THIRD END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE THIRD END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 3
3B8992Reference document
Same NSN cross-reference
Reference document — Secondary reference
91L1-4X1-8Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
0912629Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 91-2629?
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 91-2629?
91-2629 is a TANK,EXPANSION,RADIATOR.
What parts can replace 91-2629?
There are 3 known substitutes for 91-2629: 3B8992, 91L1-4X1-8, 0912629. Substitute compatibility should be verified for your specific system.
What is the NSN for 91-2629?
91-2629 is cataloged in the U.S. Government catalog under NSN 4730-00-266-2637. 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 — 91-2629

✓ 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.