PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7506Washer,key

Prestolite Electric Inc · NSN 5310-00-276-8688 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-276-8688 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-276-8688. Primary manufacturer part number: 7506.
Features
  • Washer,key — FSC 5310
  • External Key Quantity: 3
  • Material: STEEL COMP 1010 OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Outside Diameter: 0.250 INCHES NOMINAL IN
  • External Straight Key Width: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-276-8688, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-276-8688
Primary Part Number7506
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusACTIVE
External Key Quantity3
MaterialSTEEL COMP 1010 OVERALL
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter0.250 INCHES NOMINAL IN
External Straight Key Width0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Hole Diameter0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
External Straight Key Length0.21875 INCHES NOMINAL IN
Overall Distance Including Keys0.9375 INCHES NOMINAL IN
Material Thickness0.023 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4920-00-015-28767506 INTERCHANGEABLE
Coupling Assy
Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto
5330-00-073-3382 INTERCHANGEABLE
Seal,cap Assembly
3110-00-155-62001006-5 INTERCHANGEABLE
Bearing,ball,annular
Linde Material Handling North America Corporation
5935-00-258-58807506 INTERCHANGEABLE
Connector Body,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5935-00-295-5351204805-000 INTERCHANGEABLE
Connector,plug,electrical
Stromberg-Carlson Corp a Plessey Telecommunications Co
6515-00-320-4600121600 INTERCHANGEABLE
Forceps,towel
Teleflex Llc
5999-00-333-7496SMA731314 INTERCHANGEABLE
Delay Line
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3110-00-516-5851 INTERCHANGEABLE
Bearing,ball,annular
5996-00-935-00457506 INTERCHANGEABLE
Amplifier,direct Current
Drs Signal Solutions, Inc.
5998-01-339-5510 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
9B6700 Caterpillar Inc Div Caterpillar Defense (USA)
Z118007506 Prestolite Electric Inc (USA)
7506 Prestolite Electric Inc (USA)
7506 PRIMARY Prestolite Electric Inc (USA)
Related Parts
4920-00-015-2876INTERCHANGEABLE
COUPLING ASSY
7506
5330-00-073-3382INTERCHANGEABLE
SEAL,CAP ASSEMBLY
3110-00-155-6200INTERCHANGEABLE
BEARING,BALL,ANNULAR
1006-5
5935-00-258-5880INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
7506
5935-00-295-5351INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
204805-000
6515-00-320-4600INTERCHANGEABLE
FORCEPS,TOWEL
121600
5999-00-333-7496INTERCHANGEABLE
DELAY LINE
SMA731314
3110-00-516-5851INTERCHANGEABLE
BEARING,BALL,ANNULAR
5996-00-935-0045INTERCHANGEABLE
AMPLIFIER,DIRECT CURRENT
7506
5998-01-339-5510INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5110-01-535-1213INTERCHANGEABLE
PUNCH AND DIE SET,KNOCKOUT
7506
2510-01-614-9888INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
750-6

Frequently Asked Questions

What is NSN 5310-00-276-8688?

NSN 5310-00-276-8688 is a Washer,key, manufactured by Prestolite Electric Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-276-8688?

NSN 5310-00-276-8688 has 4 cross-referenced part numbers: 9B6700 (Caterpillar Inc Div Caterpillar Defense), Z118007506 (Prestolite Electric Inc), 7506 (Prestolite Electric Inc), 7506 (Prestolite Electric Inc).

What NSN replaces 5310-00-276-8688?

There are 12 known substitutes for 5310-00-276-8688: 4920-00-015-2876, 5330-00-073-3382, 3110-00-155-6200 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7506?

Key specifications for 7506: External Key Quantity: 3; Material: STEEL COMP 1010 OVERALL; Surface Treatment: CADMIUM OVERALL; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 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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