PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10803Washer,flat

Schneider Electric Systems Usa Inc · NSN 5310-00-281-3552 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-281-3552 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-281-3552. Primary manufacturer part number: 10803.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
  • Overall Diameter: 1.537 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Material Document and Classification: ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Hole Diameter: 0.945 INCHES MINIMUM AND 0.955 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-281-3552, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-281-3552
Primary Part Number10803
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSchneider Electric Systems Usa Inc
StatusCANCELLED
Thickness0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
Overall Diameter1.537 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Material Document and ClassificationASTM A109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Hole Diameter0.945 INCHES MINIMUM AND 0.955 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
1560-00-066-78401080-3 INTERCHANGEABLE
Parts Kit,adhesive
The Boeing Company Div Defense
4720-00-181-9140 INTERCHANGEABLE
Tubing,nonmetallic
5910-00-194-745710803 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Cd Snow Hill, Llc
5136-00-261-3237 INTERCHANGEABLE
Tap,thread Cutting
5310-00-274-776910803 INTERCHANGEABLE
Nut,plain,hexagon
Meggitt (new Hampshire), Inc
1660-00-347-868610803 INTERCHANGEABLE
Valve Assy,vent and
Mission Systems Orchard Park Inc
5365-00-529-844210803 INTERCHANGEABLE
Spacer,sleeve
Eaton Corporation
5975-00-714-8031143 INTERCHANGEABLE
Locknut,electrical Conduit
Abb Installation Products Inc
5120-01-553-852310803 INTERCHANGEABLE
Puller,mechanical
Tiger Tool Intl Inc
5310-01-624-766210803 INTERCHANGEABLE
Nut,plain,hexagon
Greystone, Inc.
Cross-Reference Index
Part NumberManufacturer
10803 PRIMARY Schneider Electric Systems Usa Inc (USA)
72-2051-181 Fairbanks Morse, Llc (USA)
10803 Robertshaw Controls Co Executive Office (USA)
10803 PRIMARY Alcoa/reynolds Metals Company (USA)
3244091 General Motors Corp Electro-Motive Div (USA)
5095RPC55 Fairbanks Morse, Llc (USA)
3244091AN General Motors Corp Electro-Motive Div (USA)
5095RPC55 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
72-20510-181 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
3244091AN General Motors Llc Dba General Motors Llc (USA)
72-20510-181 Fairbanks Morse, Llc (USA)
3244091 General Motors Llc Dba General Motors Llc (USA)
E84C417 REF NO-16 50921-R PRIMARY Schneider Electric Systems Usa Inc (USA)
3244091 PRIMARY Hatch & Kirk, Inc. (USA)
3244091AN PRIMARY Hatch & Kirk, Inc. (USA)
3244091 General Motors Corp (USA)
72-2051-181 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
3244091AN General Motors Corp (USA)
Related Parts
1560-00-066-7840INTERCHANGEABLE
PARTS KIT,ADHESIVE
1080-3
4720-00-181-9140INTERCHANGEABLE
TUBING,NONMETALLIC
5910-00-194-7457INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
10803
5136-00-261-3237INTERCHANGEABLE
TAP,THREAD CUTTING
5310-00-274-7769INTERCHANGEABLE
NUT,PLAIN,HEXAGON
10803
1660-00-347-8686INTERCHANGEABLE
VALVE ASSY,VENT AND
10803
5365-00-529-8442INTERCHANGEABLE
SPACER,SLEEVE
10803
5975-00-714-8031INTERCHANGEABLE
LOCKNUT,ELECTRICAL CONDUIT
143
5120-01-553-8523INTERCHANGEABLE
PULLER,MECHANICAL
10803
5310-01-624-7662INTERCHANGEABLE
NUT,PLAIN,HEXAGON
10803
5120-01-693-6286INTERCHANGEABLE
JACK,SCREW,HAND
10803

Frequently Asked Questions

What is NSN 5310-00-281-3552?

NSN 5310-00-281-3552 is a Washer,flat, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-281-3552?

NSN 5310-00-281-3552 has 18 cross-referenced part numbers: 10803 (Schneider Electric Systems Usa Inc), 72-2051-181 (Fairbanks Morse, Llc), 10803 (Robertshaw Controls Co Executive Office), 10803 (Alcoa/reynolds Metals Company), 3244091 (General Motors Corp Electro-Motive Div) and 13 more.

What NSN replaces 5310-00-281-3552?

There are 11 known substitutes for 5310-00-281-3552: 1560-00-066-7840, 4720-00-181-9140, 5910-00-194-7457 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10803?

Key specifications for 10803: Thickness: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; Overall Diameter: 1.537 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND; Material Document and Classification: ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-281-3552 still in active supply?

NSN 5310-00-281-3552 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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