PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15321Washer,flat

Bowmar Llc Dba Bowmar Instrument Corp · NSN 5310-01-266-5383 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-266-5383 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-266-5383. Primary manufacturer part number: 15321.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Material: STEEL COMP 316 OVERALL
  • Thickness: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
  • Hole Diameter: 0.040 INCHES NOMINAL IN
  • Overall Diameter: 0.239 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-266-5383, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bowmar Llc Dba Bowmar Instrument Corp. Government technical data includes 7 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-266-5383
Primary Part Number15321
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBowmar Llc Dba Bowmar Instrument Corp
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
MaterialSTEEL COMP 316 OVERALL
Thickness0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
Hole Diameter0.040 INCHES NOMINAL IN
Overall Diameter0.239 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2540-00-355-262815321 INTERCHANGEABLE
Mat,floor
Dressta North America Ltd
5136-00-585-6760 INTERCHANGEABLE
Tap,thread Cutting
3030-01-209-039413321 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5305-01-542-104815321 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
7530-01-608-829815321 INTERCHANGEABLE
Envelope,mailing
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
Cross-Reference Index
Part NumberManufacturer
15321 PRIMARY Bowmar Llc Dba Bowmar Instrument Corp (USA)
Related Parts
2540-00-355-2628INTERCHANGEABLE
MAT,FLOOR
15321
5136-00-585-6760INTERCHANGEABLE
TAP,THREAD CUTTING
3030-01-209-0394INTERCHANGEABLE
BELT,V
13321
5305-01-542-1048INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
15321
7530-01-608-8298INTERCHANGEABLE
ENVELOPE,MAILING
15321

Frequently Asked Questions

What is NSN 5310-01-266-5383?

NSN 5310-01-266-5383 is a Washer,flat, manufactured by Bowmar Llc Dba Bowmar Instrument Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-266-5383?

NSN 5310-01-266-5383 has 1 cross-referenced part number: 15321 (Bowmar Llc Dba Bowmar Instrument Corp).

What NSN replaces 5310-01-266-5383?

There are 5 known substitutes for 5310-01-266-5383: 2540-00-355-2628, 5136-00-585-6760, 3030-01-209-0394 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15321?

Key specifications for 15321: Cross-Sectional Shape Style: RECTANGULAR; Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND; Material: STEEL COMP 316 OVERALL. 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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