PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4M294-16Washer,lock

The Boeing Company Div Defense · NSN 5310-01-206-3483 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-206-3483 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-206-3483. Primary manufacturer part number: 4M294-16.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT DOUBLE HELICAL RING
  • Material: COPPER ALLOY OVERALL
  • Surface Treatment: TIN OVERALL
  • Hole Diameter: 1.020 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: ASTM B545 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Outside Diameter: 1.280 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-206-3483, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-206-3483
Primary Part Number4M294-16
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusCANCELLED
Style DesignatorSPLIT DOUBLE HELICAL RING
MaterialCOPPER ALLOY OVERALL
Surface TreatmentTIN OVERALL
Hole Diameter1.020 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationASTM B545 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Outside Diameter1.280 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6630-00-399-29752742A1-118 INTERCHANGEABLE
Seat,rubber
Unicontrol Inc Hays Cleveland Div
2990-01-166-126144512 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
5930-01-254-2145GS837GW9 INTERCHANGEABLE
Switch,push
Northrop Grumman Systems Corporation
5120-01-398-791600944512000 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
ST4M178H2 The Boeing Company Div Defense (USA)
445-12 Smalley Steel Ring Co. (USA)
4M294-16 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
6630-00-399-2975INTERCHANGEABLE
SEAT,RUBBER
2742A1-118
2990-01-166-1261INTERCHANGEABLE
PIPE,EXHAUST
44512
5930-01-254-2145INTERCHANGEABLE
SWITCH,PUSH
GS837GW9
5120-01-398-7916INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
00944512000

Frequently Asked Questions

What is NSN 5310-01-206-3483?

NSN 5310-01-206-3483 is a Washer,lock, manufactured by The Boeing Company Div Defense, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-206-3483?

NSN 5310-01-206-3483 has 3 cross-referenced part numbers: ST4M178H2 (The Boeing Company Div Defense), 445-12 (Smalley Steel Ring Co.), 4M294-16 (The Boeing Company Div Defense).

What NSN replaces 5310-01-206-3483?

There are 4 known substitutes for 5310-01-206-3483: 6630-00-399-2975, 2990-01-166-1261, 5930-01-254-2145 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4M294-16?

Key specifications for 4M294-16: Style Designator: SPLIT DOUBLE HELICAL RING; Material: COPPER ALLOY OVERALL; Surface Treatment: TIN OVERALL; Hole Diameter: 1.020 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-206-3483 still in active supply?

NSN 5310-01-206-3483 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.
PartsTable Design LLC · partstable.com