PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

373-0003-000Washer,lock

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5310-00-274-8692 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-8692 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-8692. Primary manufacturer part number: 373-0003-000.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: MIL-S-854 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: FLAT INTERNAL TEETH
  • Outside Diameter: 0.336 INCHES NOMINAL IN
  • Hole Diameter: 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
  • Material Thickness: 0.020 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Nondefinitive Spec/std Data: A TYPE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-274-8692, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-274-8692
Primary Part Number373-0003-000
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusCANCELLED
Material Document and ClassificationMIL-S-854 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorFLAT INTERNAL TEETH
Outside Diameter0.336 INCHES NOMINAL IN
Hole Diameter0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
Material Thickness0.020 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Nondefinitive Spec/std DataA TYPE
MaterialSTEEL COMP 1 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-543-2739MS35333-72 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5955-01-049-3241373-0003-000 INTERCHANGEABLE
Crystal Unit,quartz
Rtp Corp
Cross-Reference Index
Part NumberManufacturer
373-0003-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
636104-000 Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
633245PC18 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MILW6986TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
401761PC9 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
499891PC7 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FF-W-100 TY1 GR A ST 1OR2 COM 2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
636104-000 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
12Z3010-180 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
679181PC6 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5310-00-543-2739INTERCHANGEABLE
WASHER,LOCK
MS35333-72
5955-01-049-3241INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
373-0003-000

Frequently Asked Questions

What is NSN 5310-00-274-8692?

NSN 5310-00-274-8692 is a Washer,lock, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-274-8692?

NSN 5310-00-274-8692 has 10 cross-referenced part numbers: 373-0003-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 636104-000 (Stromberg-Carlson Corp a Plessey Telecommunications Co), 633245PC18 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MILW6986TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 401761PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 5 more.

What NSN replaces 5310-00-274-8692?

There are 2 known substitutes for 5310-00-274-8692: 5310-00-543-2739, 5955-01-049-3241. Verify interchangeability with system specifications before substitution.

What are the specifications of 373-0003-000?

Key specifications for 373-0003-000: Material Document and Classification: MIL-S-854 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.336 INCHES NOMINAL IN; Hole Diameter: 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-274-8692 still in active supply?

NSN 5310-00-274-8692 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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