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J145 — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

J145: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: TUBE FITTING LOCKNUT, nut_height: 10.5 MILLIMETERS NOMINAL MM, nut_length: 0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN, plate_width: 0.516 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN, temp_rating: 1200.0 FAHRENHEIT NOMINAL DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-191-1431, 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
J145
NSN: 5310-00-191-1431
NIINs: 001911431, 017308760
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleTUBE FITTING LOCKNUT
nut_height10.5 MILLIMETERS NOMINAL MM
nut_length0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
plate_width0.516 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
temp_rating1200.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFLOATING NUT
NSN5310-00-191-1431
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: J145 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
PLATE THICKNESS: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
NUT LENGTH: 0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
PLATE WIDTH: 0.516 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
•
TEMP RATING: 1200.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FEATURES PROVIDED: FLOATING NUT
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
NUT LENGTH0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
PLATE WIDTH0.516 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
TEMP RATING1200.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FEATURES PROVIDEDFLOATING NUT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 4
J145P04Reference document
Same NSN cross-reference
Reference document — Secondary reference
ZA6640S02KReference document
Same NSN cross-reference
Reference document — Secondary reference
F11087S-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
J145P04CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is J145?
J145 is a LOCKNUT,TUBE FITTING.
What parts can replace J145?
There are 4 known substitutes for J145: J145P04, ZA6640S02K, F11087S-3 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J145?
J145 is cataloged in the U.S. Government catalog under NSN 5310-00-191-1431. This indicates validated use in U.S. government and defense supply chains.
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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.