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863-000642 — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

863-000642: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL BASE, special_features: GASKETED SEALING LOCKNUTS-STEEL/MALLEABLE IRON., nominal_tube_outside_diameter: 0.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-481-5398, 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
863-000642
NSN: 4730-01-481-5398
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 4X630 — GUILD ASSOCIATES INC (USA)
SPECIFICATIONS
materialSTEEL BASE
special_featuresGASKETED SEALING LOCKNUTS-STEEL/MALLEABLE IRON.
end_item_identificationCONTRACTOR LOGISTIC SUPPORT MODEL M871, 30-FOOT TRAILER, LAUNDRY ADVANCED SYSTEM(LADDS), NSN: 2330-00-122-6779 CONTRACT DAAK60-97-C-9222 TM 9-3510-122-24P.
nominal_tube_outside_diameter0.500 INCHES IN
NSN4730-01-481-5398
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 863-000642 · 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
•
MATERIAL: STEEL BASE
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESGASKETED SEALING LOCKNUTS-STEEL/MALLEABLE IRON.
END ITEM IDENTIFICATIONCONTRACTOR LOGISTIC SUPPORT MODEL M871, 30-FOOT TRAILER, LAUNDRY ADVANCED SYSTEM(LADDS), NSN: 2330-00-122-6779 CONTRACT DAAK60-97-C-9222 TM 9-3510-122-24P.
MATERIALSTEEL BASE
NOMINAL TUBE OUTSIDE DIAMETER0.500 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
BLSG-50Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 863-000642?
863-000642 is a LOCKNUT,TUBE FITTING.
What parts can replace 863-000642?
There is 1 known substitute for 863-000642: BLSG-50. Substitute compatibility should be verified for your specific system.
What is the NSN for 863-000642?
863-000642 is cataloged in the U.S. Government catalog under NSN 4730-01-481-5398. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.