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81334642N — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

81334642N: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.402 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, hardness_rating: 95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-113-3757, 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
81334642N
NSN: 5310-00-113-3757
NIINs: 001133757, 011063683
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.402 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
hardness_rating95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.788 INCHES MINIMUM AND 0.813 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch20
NSN5310-00-113-3757
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 81334642N · 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: 0.788 INCHES MINIMUM AND 0.813 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
HARDNESS RATING: 95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 13 STYLE AND B GRADE
•
NUT HEIGHT: 0.402 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.788 INCHES MINIMUM AND 0.813 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
HARDNESS RATING95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE AND B GRADE
NUT HEIGHT0.402 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 7
RVN5200-125 ITEM 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
408537Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
16-161Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FF-N-836Reference document
Same NSN cross-reference
Reference document — Identification reference
MS35650-3392Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
K-500-CH-0169Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 81334642N?
81334642N is a NUT,PLAIN,HEXAGON.
What parts can replace 81334642N?
There are 7 known substitutes for 81334642N: RVN5200-125 ITEM 3, 408537, 16-161 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81334642N?
81334642N is cataloged in the U.S. Government catalog under NSN 5310-00-113-3757. 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.