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H31-6BAC — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H31-6BAC: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, nut_height: 0.284 INCHES MAXIMUM IN, temp_rating: 900.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-202-8983, 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
H31-6BAC
NSN: 5310-01-202-8983
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleHEXAGON
nut_height0.284 INCHES MAXIMUM IN
temp_rating900.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
NSN5310-01-202-8983
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H31-6BAC · 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
•
WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
TEMP RATING: 900.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
TEMP RATING900.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.284 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
BACN10JC6CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BRH10C6Reference document
Same NSN cross-reference
Reference document — Secondary reference
97-064Same 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 H31-6BAC?
H31-6BAC is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace H31-6BAC?
There are 3 known substitutes for H31-6BAC: BACN10JC6C, BRH10C6, 97-064. Substitute compatibility should be verified for your specific system.
What is the NSN for H31-6BAC?
H31-6BAC is cataloged in the U.S. Government catalog under NSN 5310-01-202-8983. This indicates validated use in U.S. government and defense supply chains.
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