PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403187-1Adapter,torque Wrench

Lockheed Martin Corp · NSN 5120-00-572-4931 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-572-4931 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-572-4931. Primary manufacturer part number: 403187-1.
Features
  • Adapter,torque Wrench — FSC 5120
  • Drive Surface Size: 0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN
  • Material: STEEL COMP 4130 OVERALL
  • Surface Treatment: CHROMIUM OR NICKEL OR OXIDE OVERALL
  • Wrenching Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: SQUARE SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching End Head Thickness: 0.620 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Adapter,torque Wrench, cataloged under National Stock Number 5120-00-572-4931, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-572-4931
Primary Part Number403187-1
Item NameAdapter,torque Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Drive Surface Size0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN
MaterialSTEEL COMP 4130 OVERALL
Surface TreatmentCHROMIUM OR NICKEL OR OXIDE OVERALL
Wrenching Surface Size0.500 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeSQUARE SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching End Head Thickness0.620 INCHES NOMINAL IN
Drive End Head Thickness1.180 INCHES NOMINAL IN
Material Document and ClassificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-633-66752503SKF22212C INTERCHANGEABLE
Bearing,roller,self-Aligning
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
403187-1 PRIMARY Lockheed Martin Corp (USA)
Related Parts
3110-00-633-6675INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
2503SKF22212C

Frequently Asked Questions

What is NSN 5120-00-572-4931?

NSN 5120-00-572-4931 is a Adapter,torque Wrench, manufactured by Lockheed Martin Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-572-4931?

NSN 5120-00-572-4931 has 1 cross-referenced part number: 403187-1 (Lockheed Martin Corp).

What NSN replaces 5120-00-572-4931?

There is 1 known substitute for 5120-00-572-4931: 3110-00-633-6675. Verify interchangeability with system specifications before substitution.

What are the specifications of 403187-1?

Key specifications for 403187-1: Drive Surface Size: 0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN; Material: STEEL COMP 4130 OVERALL; Surface Treatment: CHROMIUM OR NICKEL OR OXIDE OVERALL; Wrenching Surface Size: 0.500 INCHES NOMINAL SINGLE END IN. 10 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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