PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40282Washer,flat

Napco International Llc Dba Napco International Inc · NSN 5310-00-291-5944 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-291-5944 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-291-5944. Primary manufacturer part number: 40282.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.375 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: WOOL OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.750 INCHES NOMINAL IN
  • Thickness: 0.312 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Wool Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-291-5944, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-291-5944
Primary Part Number40282
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Overall Diameter1.375 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
MaterialWOOL OVERALL
Center Hole Shape StyleROUND
Hole Diameter0.750 INCHES NOMINAL IN
Thickness0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6680-00-828-7240 INTERCHANGEABLE
Glass,liquid Sight Indicator,fla
3020-01-088-7781SM-B-764969 INTERCHANGEABLE
Sprocket Wheel
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4140-01-171-958040282 INTERCHANGEABLE
Guard,fan Impeller
Hamilton Sundstrand Corporation
3120-01-233-1983 INTERCHANGEABLE
Bearing,sleeve
3020-01-271-360640282 INTERCHANGEABLE
Gear,worm Wheel
Lake Shore Systems, Inc.
5340-01-493-371440282 INTERCHANGEABLE
Plug Antibacklash
Moog Inc. Dba Ampac-Isp Corp
4810-01-540-288940282-SV INTERCHANGEABLE
Valve,solenoid
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
40282 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
6680-00-828-7240INTERCHANGEABLE
GLASS,LIQUID SIGHT INDICATOR,FLA
3020-01-088-7781INTERCHANGEABLE
SPROCKET WHEEL
SM-B-764969
4140-01-171-9580INTERCHANGEABLE
GUARD,FAN IMPELLER
40282
3120-01-233-1983INTERCHANGEABLE
BEARING,SLEEVE
3020-01-271-3606INTERCHANGEABLE
GEAR,WORM WHEEL
40282
5340-01-493-3714INTERCHANGEABLE
PLUG ANTIBACKLASH
40282
4810-01-540-2889INTERCHANGEABLE
VALVE,SOLENOID
40282-SV

Frequently Asked Questions

What is NSN 5310-00-291-5944?

NSN 5310-00-291-5944 is a Washer,flat, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-291-5944?

NSN 5310-00-291-5944 has 1 cross-referenced part number: 40282 (Napco International Llc Dba Napco International Inc).

What NSN replaces 5310-00-291-5944?

There are 7 known substitutes for 5310-00-291-5944: 6680-00-828-7240, 3020-01-088-7781, 4140-01-171-9580 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40282?

Key specifications for 40282: Overall Diameter: 1.375 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material: WOOL 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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