PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

688001-011Washer,flat

Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc · NSN 5310-00-058-3628 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-058-3628 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-058-3628. Primary manufacturer part number: 688001-011.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.065 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.312 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-058-3628, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-058-3628
Primary Part Number688001-011
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
StatusACTIVE
Overall Diameter0.750 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Surface TreatmentPASSIVATE OVERALL
Thickness0.065 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.312 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-S-763,CLASS 7,TYPE B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 303 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1660-00-031-575811827 INTERCHANGEABLE
Support
Triumph Thermal Systems - Maryland, Inc.
5330-00-967-433311827 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
6685-01-223-8396 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
583628 CAGE 00000
118-27 Met-Pro Corporation (USA)
D118-27 Met-Pro Corporation (USA)
688001-011 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
Related Parts
1660-00-031-5758INTERCHANGEABLE
SUPPORT
11827
5330-00-967-4333INTERCHANGEABLE
GASKET
11827
6685-01-223-8396INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 5310-00-058-3628?

NSN 5310-00-058-3628 is a Washer,flat, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-058-3628?

NSN 5310-00-058-3628 has 4 cross-referenced part numbers: 583628, 118-27 (Met-Pro Corporation), D118-27 (Met-Pro Corporation), 688001-011 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).

What NSN replaces 5310-00-058-3628?

There are 3 known substitutes for 5310-00-058-3628: 1660-00-031-5758, 5330-00-967-4333, 6685-01-223-8396. Verify interchangeability with system specifications before substitution.

What are the specifications of 688001-011?

Key specifications for 688001-011: Overall Diameter: 0.750 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Surface Treatment: PASSIVATE OVERALL; Thickness: 0.065 INCHES NOMINAL 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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