PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20481Washer,flat

Ashcroft Inc Dba Heise · NSN 5310-00-702-5032 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-702-5032 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-702-5032. Primary manufacturer part number: 20481.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: NICKEL ALLOY UNS N10001 OVERALL
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 1.500 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.881 INCHES MINIMUM AND 0.882 INCHES MAXIMUM IN
  • Thickness: 0.122 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Uns N10001 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-702-5032, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-702-5032
Primary Part Number20481
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialNICKEL ALLOY UNS N10001 OVERALL
Center Hole Shape StyleROUND
Overall Diameter1.500 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.881 INCHES MINIMUM AND 0.882 INCHES MAXIMUM IN
Thickness0.122 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5331-00-162-5963F37030-258 INTERCHANGEABLE
O-Ring
Funk Mfg Co Sub of Deere and Co
5305-00-206-7876 INTERCHANGEABLE
Screw,machine
5307-00-468-0128390013PC481 INTERCHANGEABLE
Stud,plain
Naval Ship Systems Command
5975-01-185-3652206081-D10180 INTERCHANGEABLE
Conduit Assembly,metal,flexible
Dcx-Chol Enterprises, Inc.
5930-01-264-973320481 INTERCHANGEABLE
Switch,toggle
Mark Industries
5855-01-299-7777M16-A1/A2 INTERCHANGEABLE
Mount,viewer
Atlantic Research Marketing Systems, Inc. Dba Atlantic Research Marketing Systems Inc
5325-01-524-327720481 INTERCHANGEABLE
Grommet,metallic
Silver King Refrigeration Inc.
Cross-Reference Index
Part NumberManufacturer
R6134CRPC6A Ashcroft Inc Dba Heise (USA)
20481 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
5331-00-162-5963INTERCHANGEABLE
O-RING
F37030-258
5305-00-206-7876INTERCHANGEABLE
SCREW,MACHINE
5307-00-468-0128INTERCHANGEABLE
STUD,PLAIN
390013PC481
5975-01-185-3652INTERCHANGEABLE
CONDUIT ASSEMBLY,METAL,FLEXIBLE
206081-D10180
5930-01-264-9733INTERCHANGEABLE
SWITCH,TOGGLE
20481
5855-01-299-7777INTERCHANGEABLE
MOUNT,VIEWER
M16-A1/A2
5325-01-524-3277INTERCHANGEABLE
GROMMET,METALLIC
20481

Frequently Asked Questions

What is NSN 5310-00-702-5032?

NSN 5310-00-702-5032 is a Washer,flat, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-702-5032?

NSN 5310-00-702-5032 has 2 cross-referenced part numbers: R6134CRPC6A (Ashcroft Inc Dba Heise), 20481 (Ashcroft Inc Dba Heise).

What NSN replaces 5310-00-702-5032?

There are 7 known substitutes for 5310-00-702-5032: 5331-00-162-5963, 5305-00-206-7876, 5307-00-468-0128 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20481?

Key specifications for 20481: Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: NICKEL ALLOY UNS N10001 OVERALL; Center Hole Shape Style: ROUND; Overall Diameter: 1.500 INCHES NOMINAL IN. 9 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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