PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1120-12Washer,lock

Itw Shakeproof Automotive Products · NSN 5310-00-006-2395 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-006-2395 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-006-2395. Primary manufacturer part number: 1120-12.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Outside Diameter: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
  • Style Designator: FLAT EXTERNAL TEETH
  • Hole Diameter: 0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
  • Material Thickness: 0.015 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Itw Shakeproof Automotive Products
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-006-2395, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Itw Shakeproof Automotive Products. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-006-2395
Primary Part Number1120-12
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerItw Shakeproof Automotive Products
StatusCANCELLED
MaterialSTEEL OVERALL
Outside Diameter0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Style DesignatorFLAT EXTERNAL TEETH
Hole Diameter0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
Material Thickness0.015 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5315-00-011-201214511A INTERCHANGEABLE
Pin,straight,headless
Brinkley Technology Group Llc Dba Hercules Manufacturing
5310-00-171-5749112012 INTERCHANGEABLE
Washer,flat
Kearfott Corporation Div Guidance and Navigation Division
3040-00-517-52196520-111-12 INTERCHANGEABLE
Shaft Assembly,flexible
Schulze Mfg., Inc.
5895-00-973-2703 INTERCHANGEABLE
Control,transponder Set
5325-01-351-5478112012 INTERCHANGEABLE
Ring,retaining
Rexnord Industries Llc
Cross-Reference Index
Part NumberManufacturer
1120-12 Itw Shakeproof Automotive Products (USA)
1120-12CPDD Itw Shakeproof Automotive Products (USA)
7901920-02 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
Related Parts
5315-00-011-2012INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
14511A
5310-00-171-5749INTERCHANGEABLE
WASHER,FLAT
112012
3040-00-517-5219INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
6520-111-12
5895-00-973-2703INTERCHANGEABLE
CONTROL,TRANSPONDER SET
5325-01-351-5478INTERCHANGEABLE
RING,RETAINING
112012

Frequently Asked Questions

What is NSN 5310-00-006-2395?

NSN 5310-00-006-2395 is a Washer,lock, manufactured by Itw Shakeproof Automotive Products, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-006-2395?

NSN 5310-00-006-2395 has 3 cross-referenced part numbers: 1120-12 (Itw Shakeproof Automotive Products), 1120-12CPDD (Itw Shakeproof Automotive Products), 7901920-02 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan).

What NSN replaces 5310-00-006-2395?

There are 5 known substitutes for 5310-00-006-2395: 5315-00-011-2012, 5310-00-171-5749, 3040-00-517-5219 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1120-12?

Key specifications for 1120-12: Material: STEEL OVERALL; Outside Diameter: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Style Designator: FLAT EXTERNAL TEETH; Hole Diameter: 0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-006-2395 still in active supply?

NSN 5310-00-006-2395 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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