PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

691C726P5Washer,flat

Bae Systems Controls Inc. · NSN 5310-00-917-5609 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-917-5609 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-917-5609. Primary manufacturer part number: 691C726P5.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Overall Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
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 5310-00-917-5609, 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 Controls Inc.. Government technical data includes 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-917-5609
Primary Part Number691C726P5
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBae Systems Controls Inc.
StatusCANCELLED
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Overall Diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
Thickness0.027 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4820-00-162-9522 INTERCHANGEABLE
Valve,globe
5315-00-251-9982D35 INTERCHANGEABLE
Pin,straight,headless
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5950-01-011-3203SM-C-416327-1 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6130-01-201-33901-8631 INTERCHANGEABLE
Power Pack Assembly
Air Systems Components Inc Dba Air System Components Inc Div Trion Iaq Div
6240-01-344-5132100PAR/FL/HIR/120 INTERCHANGEABLE
Lamp,incandescent
General Electric Company Dba Ge
Cross-Reference Index
Part NumberManufacturer
18631 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
691C726P5 PRIMARY Bae Systems Controls Inc. (USA)
Related Parts
4820-00-162-9522INTERCHANGEABLE
VALVE,GLOBE
5315-00-251-9982INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
D35
5950-01-011-3203INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-C-416327-1
6130-01-201-3390INTERCHANGEABLE
POWER PACK ASSEMBLY
1-8631
6240-01-344-5132INTERCHANGEABLE
LAMP,INCANDESCENT
100PAR/FL/HIR/120

Frequently Asked Questions

What is NSN 5310-00-917-5609?

NSN 5310-00-917-5609 is a Washer,flat, manufactured by Bae Systems Controls Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-917-5609?

NSN 5310-00-917-5609 has 2 cross-referenced part numbers: 18631 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 691C726P5 (Bae Systems Controls Inc.).

What NSN replaces 5310-00-917-5609?

There are 5 known substitutes for 5310-00-917-5609: 4820-00-162-9522, 5315-00-251-9982, 5950-01-011-3203 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 691C726P5?

Key specifications for 691C726P5: Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-917-5609 still in active supply?

NSN 5310-00-917-5609 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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