PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7951Washer,flat

Cummins Inc. · NSN 5310-00-205-8870 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-205-8870 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-205-8870. Primary manufacturer part number: 7951.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.243 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN
  • Material: COPPER OVERALL
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.899 INCHES MINIMUM AND 0.913 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Thickness: 0.055 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-205-8870, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-205-8870
Primary Part Number7951
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Overall Diameter1.243 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN
MaterialCOPPER OVERALL
Peripheral Shape StyleROUND
Hole Diameter0.899 INCHES MINIMUM AND 0.913 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Thickness0.055 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3930-00-175-4702 INTERCHANGEABLE
Mast,first Stage
5330-00-362-234675061 INTERCHANGEABLE
Gasket
H20 Tank Inc U S Motors Div
2920-00-371-4696 INTERCHANGEABLE
Cup,drive,machine
7025-00-460-5418 INTERCHANGEABLE
Interface Units,16d
5136-00-616-7299B6167299 INTERCHANGEABLE
Tap,thread Cleaning
Army, United States Department of the Dba Watervliet Arsenal Div Business Development
5950-00-681-7098MB241D INTERCHANGEABLE
Transformer,power
Ballantine Laboratories Inc
6685-00-846-3284G786 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Reotemp Instrument Corporation
2920-00-851-7743R11292 INTERCHANGEABLE
Relay-Solenoid,engine Starter,el
Deere & Company Dba Deere John Co
6230-01-504-39617951 INTERCHANGEABLE
Spotlight
Golight, Inc
4810-01-619-17117951 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Dyna-Empire Inc
Cross-Reference Index
Part NumberManufacturer
7951 PRIMARY Cummins Inc. (USA)
Related Parts
3930-00-175-4702INTERCHANGEABLE
MAST,FIRST STAGE
5330-00-362-2346INTERCHANGEABLE
GASKET
75061
2920-00-371-4696INTERCHANGEABLE
CUP,DRIVE,MACHINE
7025-00-460-5418INTERCHANGEABLE
INTERFACE UNITS,16D
5136-00-616-7299INTERCHANGEABLE
TAP,THREAD CLEANING
B6167299
5950-00-681-7098INTERCHANGEABLE
TRANSFORMER,POWER
MB241D
6685-00-846-3284INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
G786
2920-00-851-7743INTERCHANGEABLE
RELAY-SOLENOID,ENGINE STARTER,EL
R11292
6230-01-504-3961INTERCHANGEABLE
SPOTLIGHT
7951
4810-01-619-1711INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
7951

Frequently Asked Questions

What is NSN 5310-00-205-8870?

NSN 5310-00-205-8870 is a Washer,flat, manufactured by Cummins Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-205-8870?

NSN 5310-00-205-8870 has 1 cross-referenced part number: 7951 (Cummins Inc.).

What NSN replaces 5310-00-205-8870?

There are 10 known substitutes for 5310-00-205-8870: 3930-00-175-4702, 5330-00-362-2346, 2920-00-371-4696 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7951?

Key specifications for 7951: Overall Diameter: 1.243 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN; Material: COPPER OVERALL; Peripheral Shape Style: ROUND; Hole Diameter: 0.899 INCHES MINIMUM AND 0.913 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-205-8870 still in active supply?

NSN 5310-00-205-8870 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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