PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1521P5Washer,flat

Bell and Howell Phillipsburg Co Corporate Offices · NSN 5310-00-285-1488 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-285-1488 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-285-1488. Primary manufacturer part number: 1521P5.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Thickness: 0.0270 INCHES MINIMUM AND 0.0370 INCHES MAXIMUM IN
  • Overall Diameter: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: CADMIUM OVERALL
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 5310-00-285-1488, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell and Howell Phillipsburg Co Corporate Offices. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5310-00-285-1488
Primary Part Number1521P5
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBell and Howell Phillipsburg Co Corporate Offices
StatusACTIVE
MaterialSTEEL OVERALL
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Thickness0.0270 INCHES MINIMUM AND 0.0370 INCHES MAXIMUM IN
Overall Diameter0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Hole Diameter0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-00-172-5583LM1458N INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
Cross-Reference Index
Part NumberManufacturer
1521P5 Bell and Howell Phillipsburg Co Corporate Offices (USA)
FF-W-92 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
601521 Bell and Howell Phillipsburg Co Corporate Offices (USA)
Related Parts
5962-00-172-5583INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM1458N

Frequently Asked Questions

What is NSN 5310-00-285-1488?

NSN 5310-00-285-1488 is a Washer,flat, manufactured by Bell and Howell Phillipsburg Co Corporate Offices, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-285-1488?

NSN 5310-00-285-1488 has 3 cross-referenced part numbers: 1521P5 (Bell and Howell Phillipsburg Co Corporate Offices), FF-W-92 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 601521 (Bell and Howell Phillipsburg Co Corporate Offices).

What NSN replaces 5310-00-285-1488?

There is 1 known substitute for 5310-00-285-1488: 5962-00-172-5583. Verify interchangeability with system specifications before substitution.

What are the specifications of 1521P5?

Key specifications for 1521P5: Material: STEEL OVERALL; Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND; Thickness: 0.0270 INCHES MINIMUM AND 0.0370 INCHES MAXIMUM IN. 9 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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