PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

251-010Nut,self-Locking,hexagon

Dorman Products, Inc. Dba Dorman · NSN 5310-01-193-7509 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-193-7509 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-193-7509. Primary manufacturer part number: 251-010.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT
  • Material: STEEL NUT
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 20
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.250 INCHES IN
  • Width Across Flats: 0.438 INCHES NOMINAL IN
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 5310-01-193-7509, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dorman Products, Inc. Dba Dorman. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-193-7509
Primary Part Number251-010
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDorman Products, Inc. Dba Dorman
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
MaterialSTEEL NUT
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch20
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.250 INCHES IN
Width Across Flats0.438 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class23
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Nut StyleHEXAGON
Nut Height0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-006-35282N3055 INTERCHANGEABLE
Resistor,fixed,film
Vishay
5920-00-236-8591251 010 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
2840-00-509-6037251010 INTERCHANGEABLE
Tube,overboard Oil
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5340-00-734-9687028110 INTERCHANGEABLE
Seat,helical Compression Spring
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5310-00-763-8920 INTERCHANGEABLE
Nut,plain,hexagon
5905-00-860-9661251010 INTERCHANGEABLE
Resistor Assembly
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5960-00-987-15092510-10 INTERCHANGEABLE
Retainer,electron Tube
Interplex Nascal Inc
5360-01-059-2437 INTERCHANGEABLE
Spring,helical,compression
5975-01-223-8399251010 INTERCHANGEABLE
Conduit Assembly,nonmetallic,ele
Safran Electrical Components Usa, Inc Div Safran Electrical Components Usa
5920-01-422-0149251.010 INTERCHANGEABLE
Fuse,special
Littelfuse, Inc.
Cross-Reference Index
Part NumberManufacturer
251-010 Dorman Products, Inc. Dba Dorman (USA)
Related Parts
5905-00-006-3528INTERCHANGEABLE
RESISTOR,FIXED,FILM
2N3055
5920-00-236-8591INTERCHANGEABLE
FUSE,CARTRIDGE
251 010
2840-00-509-6037INTERCHANGEABLE
TUBE,OVERBOARD OIL
251010
5340-00-734-9687INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
028110
5310-00-763-8920INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5905-00-860-9661INTERCHANGEABLE
RESISTOR ASSEMBLY
251010
5960-00-987-1509INTERCHANGEABLE
RETAINER,ELECTRON TUBE
2510-10
5360-01-059-2437INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5975-01-223-8399INTERCHANGEABLE
CONDUIT ASSEMBLY,NONMETALLIC,ELE
251010
5920-01-422-0149INTERCHANGEABLE
FUSE,SPECIAL
251.010
5910-01-441-6465INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
5950-01-658-5482INTERCHANGEABLE
COIL,ELECTRICAL
251010-1

Frequently Asked Questions

What is NSN 5310-01-193-7509?

NSN 5310-01-193-7509 is a Nut,self-Locking,hexagon, manufactured by Dorman Products, Inc. Dba Dorman, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-193-7509?

NSN 5310-01-193-7509 has 1 cross-referenced part number: 251-010 (Dorman Products, Inc. Dba Dorman).

What NSN replaces 5310-01-193-7509?

There are 12 known substitutes for 5310-01-193-7509: 5905-00-006-3528, 5920-00-236-8591, 2840-00-509-6037 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 251-010?

Key specifications for 251-010: Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT; Material: STEEL NUT; Bearing Surface Type: CHAMFERED; Thread Quantity Per Inch: 20. 12 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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