PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51N1260-126Nut,self-Locking,hexagon

Esna, Llc · NSN 5310-01-046-3910 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-046-3910 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-046-3910. Primary manufacturer part number: 51N1260-126.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Bearing Surface Type: CHAMFERED
  • Nut Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Thread Quantity Per Inch: 16
  • Nominal Thread Size: 0.750 INCHES IN
  • Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-046-3910, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-046-3910
Primary Part Number51N1260-126
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEsna, Llc
StatusCANCELLED
Bearing Surface TypeCHAMFERED
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread Quantity Per Inch16
Nominal Thread Size0.750 INCHES IN
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
MaterialSTEEL COMP 1137 NUT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Width Across Flats1.045 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN
Surface TreatmentZINC NUT
Nut Height1.250 INCHES NOMINAL IN
Thread SeriesUNF
Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5950-00-104-8382 INTERCHANGEABLE
Coil,radio Frequency
5360-00-316-3998C0772J INTERCHANGEABLE
Spring,helical,compression
Griswold Industries Dba Cla-Val Co
5865-00-658-2922C772 INTERCHANGEABLE
Support,tube Base
Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc
3040-01-288-3297 INTERCHANGEABLE
Cover,scrubber
8465-01-446-86178829-1 INTERCHANGEABLE
Pocket,ammunition Magazine
Michaels of Oregon Co Dba Uncle Mikes
5120-01-651-0424 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
0903535-1216 Jimco Supply Co Inc (USA)
C772 Thor Power Tool Co Sub of Stewart-Warner Co (USA)
51N1260-126 Harvard Industries Inc (USA)
88-291 Dresser Industries Inc Leroi Div (USA)
68D12 Dana Off Highway Products, Llc (USA)
59N1260-126 Esna, Llc (USA)
51N1260-126 PRIMARY Esna, Llc (USA)
Related Parts
5950-00-104-8382INTERCHANGEABLE
COIL,RADIO FREQUENCY
5360-00-316-3998INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
C0772J
5865-00-658-2922INTERCHANGEABLE
SUPPORT,TUBE BASE
C772
3040-01-288-3297INTERCHANGEABLE
COVER,SCRUBBER
8465-01-446-8617INTERCHANGEABLE
POCKET,AMMUNITION MAGAZINE
8829-1
5120-01-651-0424INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5310-01-046-3910?

NSN 5310-01-046-3910 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-046-3910?

NSN 5310-01-046-3910 has 7 cross-referenced part numbers: 0903535-1216 (Jimco Supply Co Inc), C772 (Thor Power Tool Co Sub of Stewart-Warner Co), 51N1260-126 (Harvard Industries Inc), 88-291 (Dresser Industries Inc Leroi Div), 68D12 (Dana Off Highway Products, Llc) and 2 more.

What NSN replaces 5310-01-046-3910?

There are 6 known substitutes for 5310-01-046-3910: 5950-00-104-8382, 5360-00-316-3998, 5865-00-658-2922 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51N1260-126?

Key specifications for 51N1260-126: Bearing Surface Type: CHAMFERED; Nut Style: HEXAGON; Thread Direction: RIGHT-HAND; Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-046-3910 still in active supply?

NSN 5310-01-046-3910 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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