PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

245125Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-576-8136 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-576-8136 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-576-8136. Primary manufacturer part number: 245125.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: AMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY 101 OVERALL
  • Thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 101 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-576-8136, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-576-8136
Primary Part Number245125
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Material Document and ClassificationAMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY 101 OVERALL
Thickness0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5305-00-054-5650 INTERCHANGEABLE
Screw,machine
5305-00-770-2580904386-21 INTERCHANGEABLE
Screw,machine
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
Cross-Reference Index
Part NumberManufacturer
245125 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5305-00-054-5650INTERCHANGEABLE
SCREW,MACHINE
5305-00-770-2580INTERCHANGEABLE
SCREW,MACHINE
904386-21

Frequently Asked Questions

What is NSN 5310-00-576-8136?

NSN 5310-00-576-8136 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-576-8136?

NSN 5310-00-576-8136 has 1 cross-referenced part number: 245125 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-576-8136?

There are 2 known substitutes for 5310-00-576-8136: 5305-00-054-5650, 5305-00-770-2580. Verify interchangeability with system specifications before substitution.

What are the specifications of 245125?

Key specifications for 245125: Material Document and Classification: AMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY 101 OVERALL; Thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-576-8136 still in active supply?

NSN 5310-00-576-8136 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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