PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SCB69325Washer,flat

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-521-8730 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-521-8730 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-521-8730. Primary manufacturer part number: SCB69325.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment Document and Classification: MIL-F-14072 FINISH E211 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Material Document and Classification: QQ-S-636 COND 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PHOSPHATE OVERALL
  • Features Provided: CASEHARDENED
  • Overall Diameter: 0.500 INCHES NOMINAL IN
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 5310-00-521-8730, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-521-8730
Primary Part NumberSCB69325
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Surface Treatment Document and ClassificationMIL-F-14072 FINISH E211 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Material Document and ClassificationQQ-S-636 COND 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPHOSPHATE OVERALL
Features ProvidedCASEHARDENED
Overall Diameter0.500 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Hole Diameter0.188 INCHES NOMINAL IN
Thickness0.031 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4930-00-374-765062-028 INTERCHANGEABLE
Extension,grease Gun
Mcneil Ohio Corp
5935-01-100-5749 INTERCHANGEABLE
Socket,plug-in Electronic Compon
1650-01-478-178850887 INTERCHANGEABLE
Cylinder Sleeve
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
Cross-Reference Index
Part NumberManufacturer
SCB69325 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
50887 Kleinschmidt Inc (USA)
Related Parts
4930-00-374-7650INTERCHANGEABLE
EXTENSION,GREASE GUN
62-028
5935-01-100-5749INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1650-01-478-1788INTERCHANGEABLE
CYLINDER SLEEVE
50887

Frequently Asked Questions

What is NSN 5310-00-521-8730?

NSN 5310-00-521-8730 is a Washer,flat, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-521-8730?

NSN 5310-00-521-8730 has 2 cross-referenced part numbers: SCB69325 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 50887 (Kleinschmidt Inc).

What NSN replaces 5310-00-521-8730?

There are 3 known substitutes for 5310-00-521-8730: 4930-00-374-7650, 5935-01-100-5749, 1650-01-478-1788. Verify interchangeability with system specifications before substitution.

What are the specifications of SCB69325?

Key specifications for SCB69325: Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment Document and Classification: MIL-F-14072 FINISH E211 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL OVERALL; Material Document and Classification: QQ-S-636 COND 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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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