PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125751Washer,lock

General Motors Llc Dba General Motors Llc · NSN 5310-00-012-5751 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-5751 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-5751. Primary manufacturer part number: 125751.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: FLAT EXTERNAL TEETH
  • Hole Diameter: 0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN
  • Outside Diameter: 0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
  • Material: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Material Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1065 or Steel Comp 1070 or Steel Comp 1075 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-012-5751, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-012-5751
Primary Part Number125751
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors Llc
StatusACTIVE
Material Document and ClassificationQQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorFLAT EXTERNAL TEETH
Hole Diameter0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN
Outside Diameter0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
MaterialSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
Surface TreatmentCADMIUM OR ZINC OVERALL
Material Thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5136-00-227-8625 INTERCHANGEABLE
Tap,thread Cutting
5815-00-322-4329SM-B-148529 INTERCHANGEABLE
Keytop,keyboard
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3040-00-338-861652912 INTERCHANGEABLE
Shaft Assembly,flexible
Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc
1420-00-631-6422180647 INTERCHANGEABLE
Card Assy
Raytheon Company Dba Raytheon
5331-00-731-7741 INTERCHANGEABLE
O-Ring
6680-01-012-03271257-5-1 INTERCHANGEABLE
Bridge Board Assembly
Mission Systems Davenport Inc.
5970-01-032-0555 INTERCHANGEABLE
Insulator,washer
6220-01-201-26664018 INTERCHANGEABLE
Stop Light-Taillight,vehicular
Truck-Lite Co., Llc
5331-01-307-1798128825 INTERCHANGEABLE
O-Ring
Cnh Industrial America Llc Dba Cnh America
5360-01-341-4591CR122674 PIECE 321 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
125751 General Motors Corp (USA)
BEAX7E1 CAGE 00000
125751 PRIMARY General Motors Llc Dba General Motors Llc (USA)
52912 PRIMARY Am General Llc (USA)
Related Parts
5136-00-227-8625INTERCHANGEABLE
TAP,THREAD CUTTING
5815-00-322-4329INTERCHANGEABLE
KEYTOP,KEYBOARD
SM-B-148529
3040-00-338-8616INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
52912
1420-00-631-6422INTERCHANGEABLE
CARD ASSY
180647
5331-00-731-7741INTERCHANGEABLE
O-RING
6680-01-012-0327INTERCHANGEABLE
BRIDGE BOARD ASSEMBLY
1257-5-1
5970-01-032-0555INTERCHANGEABLE
INSULATOR,WASHER
6220-01-201-2666INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
4018
5331-01-307-1798INTERCHANGEABLE
O-RING
128825
5360-01-341-4591INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
CR122674 PIECE 321
5950-01-356-7455INTERCHANGEABLE
TRANSFORMER,POWER
52912
5998-01-553-2926INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
52912

Frequently Asked Questions

What is NSN 5310-00-012-5751?

NSN 5310-00-012-5751 is a Washer,lock, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-012-5751?

NSN 5310-00-012-5751 has 4 cross-referenced part numbers: 125751 (General Motors Corp), BEAX7E1, 125751 (General Motors Llc Dba General Motors Llc), 52912 (Am General Llc).

What NSN replaces 5310-00-012-5751?

There are 12 known substitutes for 5310-00-012-5751: 5136-00-227-8625, 5815-00-322-4329, 3040-00-338-8616 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125751?

Key specifications for 125751: Material Document and Classification: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: FLAT EXTERNAL TEETH; Hole Diameter: 0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN; Outside Diameter: 0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN. 7 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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