PartsTable
Technical Data Sheet
Download PDF

J21399 — CLAMP,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

J21399: CLAMP,HOSE.

The CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 201 OVERALL, overall_width: 0.750 INCHES NOMINAL IN, inside_diameter: 4.000 INCHES NOMINAL IN, style_designator: ADJUSTABLE BAND, fastening_device_type: BUCKLE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-244-7275, 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
J21399
NSN: 4730-01-244-7275
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 70847 — BAND-IT-IDEX INC UNIT OF IDEX CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 201 OVERALL
overall_width0.750 INCHES NOMINAL IN
inside_diameter4.000 INCHES NOMINAL IN
style_designatorADJUSTABLE BAND
fastening_device_typeBUCKLE
NSN4730-01-244-7275
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J21399 · 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
•
FASTENING DEVICE TYPE: BUCKLE
•
STYLE DESIGNATOR: ADJUSTABLE BAND
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 201 OVERALL
TECHNICAL CHARACTERISTICS
FASTENING DEVICE TYPEBUCKLE
STYLE DESIGNATORADJUSTABLE BAND
OVERALL WIDTH0.750 INCHES NOMINAL IN
INSIDE DIAMETER4.000 INCHES NOMINAL IN
MATERIALSTEEL COMP 201 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
J213Reference 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 J21399?
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 J21399?
J21399 is a CLAMP,HOSE.
What parts can replace J21399?
There is 1 known substitute for J21399: J213. Substitute compatibility should be verified for your specific system.
What is the NSN for J21399?
J21399 is cataloged in the U.S. Government catalog under NSN 4730-01-244-7275. 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 — J21399

✓ 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.