PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12759-00891Nut,self-Locking,hexagon

Fastenal Company Dba Fastenal Co · NSN 5310-01-579-0992 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-579-0992 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-579-0992. Primary manufacturer part number: 12759-00891.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Surface Treatment Document and Classification: ASTM F1941, FE/ZN 3 AT ASSN STD ALL TREATMENT RESPONSES OVERALL
  • Supplementary Features: THREAD REQUIREMENTS0 ANSI B1.1, UNC OR UNF; GRADE C STEEL EQUIVALENT TO GRADE 8; WRENCH SIZE-3/4 IN; WEIGHT-0.0346 LBS LBS
  • Material: STEEL OVERALL
  • Material Document and Classification: IFI 100/107 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: ZINC OVERALL
  • Lubrication: WAX
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-579-0992, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-579-0992
Primary Part Number12759-00891
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Thread DirectionRIGHT-HAND
Surface Treatment Document and ClassificationASTM F1941, FE/ZN 3 AT ASSN STD ALL TREATMENT RESPONSES OVERALL
Supplementary FeaturesTHREAD REQUIREMENTS0 ANSI B1.1, UNC OR UNF; GRADE C STEEL EQUIVALENT TO GRADE 8; WRENCH SIZE-3/4 IN; WEIGHT-0.0346 LBS LBS
MaterialSTEEL OVERALL
Material Document and ClassificationIFI 100/107 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentZINC OVERALL
LubricationWAX
Width Across Flats0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Nut StyleHEXAGON
Nut Height0.427 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.500 INCHES IN
Thread Class2B
Thread Quantity Per Inch20
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-914-0082T053-001-0001 INTERCHANGEABLE
Transformer,power
L3harris Interstate Electronics Corporation
1650-01-114-086137308 INTERCHANGEABLE
Cylinder Sleeve and Piston Assem
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2520-01-159-417337308 INTERCHANGEABLE
Deflector,dirt and Liquid
Dana Light Axle Products, Llc Dba Dana Light Axle Products
6685-01-294-8740 INTERCHANGEABLE
Indicator,pressure
4810-01-305-8761373-08A INTERCHANGEABLE
Retainer,disk,valve
Magnatrol Valve Corp Div Clark-Cooper
5307-01-414-079299137308 INTERCHANGEABLE
Stud,plain
Alfa Laval Inc
5940-01-470-708537308 INTERCHANGEABLE
Terminal,quick Disconnect
Tld Wollard Llc
5365-01-478-447637308 INTERCHANGEABLE
Spacer,sleeve
Allied Systems Company Dba Allied Systems Co
2590-01-652-775837308 INTERCHANGEABLE
Bracket,vehicular Components
Willard Marine, Inc.
Cross-Reference Index
Part NumberManufacturer
49260AX Oshkosh Defense Llc (USA)
12759-00891 PRIMARY Fastenal Company Dba Fastenal Co (USA)
37308 PRIMARY Fastenal Company Dba Fastenal Co (USA)
49260AX Oshkosh Corp (USA)
Related Parts
5950-00-914-0082INTERCHANGEABLE
TRANSFORMER,POWER
T053-001-0001
1650-01-114-0861INTERCHANGEABLE
CYLINDER SLEEVE AND PISTON ASSEM
37308
2520-01-159-4173INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
37308
6685-01-294-8740INTERCHANGEABLE
INDICATOR,PRESSURE
4810-01-305-8761INTERCHANGEABLE
RETAINER,DISK,VALVE
373-08A
5307-01-414-0792INTERCHANGEABLE
STUD,PLAIN
99137308
5940-01-470-7085INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
37308
5365-01-478-4476INTERCHANGEABLE
SPACER,SLEEVE
37308
2590-01-652-7758INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
37308

Frequently Asked Questions

What is NSN 5310-01-579-0992?

NSN 5310-01-579-0992 is a Nut,self-Locking,hexagon, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-579-0992?

NSN 5310-01-579-0992 has 4 cross-referenced part numbers: 49260AX (Oshkosh Defense Llc), 12759-00891 (Fastenal Company Dba Fastenal Co), 37308 (Fastenal Company Dba Fastenal Co), 49260AX (Oshkosh Corp).

What NSN replaces 5310-01-579-0992?

There are 9 known substitutes for 5310-01-579-0992: 5950-00-914-0082, 1650-01-114-0861, 2520-01-159-4173 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12759-00891?

Key specifications for 12759-00891: Thread Direction: RIGHT-HAND; Part Name Assigned by Controlling Agency: 1/2-20 GRADE C ZINC PLATED TOP LOCK NUT; Surface Treatment Document and Classification: ASTM F1941, FE/ZN 3 AT ASSN STD ALL TREATMENT RESPONSES OVERALL; Supplementary Features: THREAD REQUIREMENTS0 ANSI B1.1, UNC OR UNF; GRADE C STEEL EQUIVALENT TO GRADE 8; WRENCH SIZE-3/4 IN; WEIGHT-0.0346 LBS LBS. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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