PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7338741Washer,lock

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5310-00-733-8741 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-733-8741 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-733-8741. Primary manufacturer part number: 7338741.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material Thickness: 0.054 INCHES NOMINAL IN
  • Outside Diameter: 0.297 INCHES NOMINAL IN
  • Hole Diameter: 0.156 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
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 5310-00-733-8741, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5310-00-733-8741
Primary Part Number7338741
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
MaterialSTEEL OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Thickness0.054 INCHES NOMINAL IN
Outside Diameter0.297 INCHES NOMINAL IN
Hole Diameter0.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-209-5309 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
7338741 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
8LW3 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
8LW3 PRIMARY Fairbanks Morse, Llc (USA)
Related Parts
5310-00-209-5309INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-733-8741?

NSN 5310-00-733-8741 is a Washer,lock, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-733-8741?

NSN 5310-00-733-8741 has 3 cross-referenced part numbers: 7338741 (U S Army Tank Automotive Command Amsta-Im-Mm), 8LW3 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine), 8LW3 (Fairbanks Morse, Llc).

What NSN replaces 5310-00-733-8741?

There is 1 known substitute for 5310-00-733-8741: 5310-00-209-5309. Verify interchangeability with system specifications before substitution.

What are the specifications of 7338741?

Key specifications for 7338741: Material: STEEL OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Thickness: 0.054 INCHES NOMINAL IN; Outside Diameter: 0.297 INCHES NOMINAL IN. 5 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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