PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

149266Washer,flat

Raytheon Company Dba Raytheon · NSN 5310-00-558-6315 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-558-6315 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-558-6315. Primary manufacturer part number: 149266.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Material: BERYLLIUM OVERALL
  • Surface Treatment Document and Classification: QQ-S-365 TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: QQ-C-533 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: SILVER OVERALL
  • Hole Diameter: 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Beryllium Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-558-6315, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 10 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-558-6315
Primary Part Number149266
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
MaterialBERYLLIUM OVERALL
Surface Treatment Document and ClassificationQQ-S-365 TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-C-533 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentSILVER OVERALL
Hole Diameter0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Thickness0.012 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3930-00-928-8875C630597 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
Cascade Corp
Cross-Reference Index
Part NumberManufacturer
149266 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
3930-00-928-8875INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
C630597

Frequently Asked Questions

What is NSN 5310-00-558-6315?

NSN 5310-00-558-6315 is a Washer,flat, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-558-6315?

NSN 5310-00-558-6315 has 1 cross-referenced part number: 149266 (Raytheon Company Dba Raytheon).

What NSN replaces 5310-00-558-6315?

There is 1 known substitute for 5310-00-558-6315: 3930-00-928-8875. Verify interchangeability with system specifications before substitution.

What are the specifications of 149266?

Key specifications for 149266: Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND; Material: BERYLLIUM OVERALL; Surface Treatment Document and Classification: QQ-S-365 TY 1 FED SPEC SINGLE TREATMENT 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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