PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1277133Extension Guard

Highland Auto & Truck Supply · NSN 2510-00-737-4733 · FSC 2510 · No Item Name Available
Verified by PartsTable
NSN 2510-00-737-4733 — this item is cataloged by the U.S. Government under National Stock Number 2510-00-737-4733. Primary manufacturer part number: 1277133.
Features
  • Extension Guard — FSC 2510
  • General Characteristics Item Description: STEEL,34-1/2 IN.LONG,2 IN.WIDE,ONE END 4-1/4 IN.HIGH,OPPOSITE END 2-1/4 IN.HIGH,2 HOLES 5/16-20 THREAD ON LARGE END,1-5/8 IN.CENTER TO CENTER,ONE HOLE 9/16 IN.DIA,ONE HOLE 5/8 IN.DIA.UNTHREADED ON SMALL END IN
  • 1 verified cross-reference
  • Primary manufacturer: Highland Auto & Truck Supply
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Extension Guard, cataloged under National Stock Number 2510-00-737-4733, is classified within Federal Supply Class 2510 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Highland Auto & Truck Supply. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2510-00-737-4733
Primary Part Number1277133
Item NameExtension Guard
FSC / FSG2510 / 25 — No Item Name Available
ManufacturerHighland Auto & Truck Supply
StatusACTIVE
General Characteristics Item DescriptionSTEEL,34-1/2 IN.LONG,2 IN.WIDE,ONE END 4-1/4 IN.HIGH,OPPOSITE END 2-1/4 IN.HIGH,2 HOLES 5/16-20 THREAD ON LARGE END,1-5/8 IN.CENTER TO CENTER,ONE HOLE 9/16 IN.DIA,ONE HOLE 5/8 IN.DIA.UNTHREADED ON SMALL END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6145-00-140-8226 INTERCHANGEABLE
Cable,power,electrical
5998-00-402-98141277133 INTERCHANGEABLE
Circuit Card Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
1277133 Highland Auto & Truck Supply (USA)
Related Parts
6145-00-140-8226INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
5998-00-402-9814INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
1277133

Frequently Asked Questions

What is NSN 2510-00-737-4733?

NSN 2510-00-737-4733 is a Extension Guard, manufactured by Highland Auto & Truck Supply, classified under FSC 2510 (No Item Name Available). Status: active.

What are the part numbers for NSN 2510-00-737-4733?

NSN 2510-00-737-4733 has 1 cross-referenced part number: 1277133 (Highland Auto & Truck Supply).

What NSN replaces 2510-00-737-4733?

There are 2 known substitutes for 2510-00-737-4733: 6145-00-140-8226, 5998-00-402-9814. Verify interchangeability with system specifications before substitution.

What are the specifications of 1277133?

Key specifications for 1277133: General Characteristics Item Description: STEEL,34-1/2 IN.LONG,2 IN.WIDE,ONE END 4-1/4 IN.HIGH,OPPOSITE END 2-1/4 IN.HIGH,2 HOLES 5/16-20 THREAD ON LARGE END,1-5/8 IN.CENTER TO CENTER,ONE HOLE 9/16 IN.DIA,ONE HOLE 5/8 IN.DIA.UNTHREADED ON SMALL END IN. 1 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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