PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35333-74Washer,lock

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-543-2740 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-543-2740 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-543-2740. Primary manufacturer part number: MS35333-74.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
  • Surface Treatment Document and Classification: QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
  • Style Designator: FLAT INTERNAL TEETH
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-543-2740, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 26 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-543-2740
Primary Part NumberMS35333-74
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Material Thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Surface Treatment Document and ClassificationQQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
Outside Diameter0.460 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
MaterialSTEEL COMP 410 OVERALL
Nondefinitive Spec/std Data1 TYPE AND A GRADE AND 1 STYLE AND 2 COMPOSITION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4320-00-066-1459 INTERCHANGEABLE
Valve,wing,pump
5935-00-156-3691C148-3-1 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5331-00-162-56887-57-017 INTERCHANGEABLE
O-Ring
Akron Brass Company
5310-00-193-7577105090-503 INTERCHANGEABLE
Washer,lock
Raytheon Company
5306-00-226-4824AEB02C312625WA6AA1 INTERCHANGEABLE
Bolt,machine
The American Society of Mechanical Engineers
3455-00-231-348610400 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
5310-00-271-7452373-0005-000 INTERCHANGEABLE
Washer,lock
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5960-00-280-6500103004 INTERCHANGEABLE
Shield,electron Tube
Mushield Co Inc
3040-00-368-834030155-1 INTERCHANGEABLE
Disc,brake
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5815-00-392-7871SM-C-157396 INTERCHANGEABLE
Mounting
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
MS35333-74 Wass Srl (ITA)
MS35333-4 Zf Industrieantriebe Witten Gmbh (DEU)
301551 Outboard Marine Corp (USA)
144300412 Elac Sonar Gmbh (DEU)
535-1714 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
8200196-2 Lockheed Martin Corporation Div Rms (USA)
MS35333-74 Zf Industrieantriebe Witten Gmbh (DEU)
10400 Kleinschmidt Inc (USA)
33919 Dictaphone Corporation (USA)
C776 Andrea Systems Llc (USA)
5310PL1368944 Jednolity Indeks Materialowy - Uniform Material Index (POL)
411100-74 Raytheon Company Dba Raytheon (USA)
301551 Zf Industrieantriebe Witten Gmbh (DEU)
167-7044216 REV A PC NO 125 Naval Sea Systems Command (USA)
873916 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
927000-0074 Thales Uk Limited Dba Thales Uk Ltd Avionics (GBR)
124-7386972 PC 31 Naval Sea Systems Command (USA)
103004 Zf Industrieantriebe Witten Gmbh (DEU)
C776 Andrea Electronics Corporation (USA)
301551 Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors (GBR)
Related Parts
4320-00-066-1459INTERCHANGEABLE
VALVE,WING,PUMP
5935-00-156-3691INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C148-3-1
5331-00-162-5688INTERCHANGEABLE
O-RING
7-57-017
5310-00-193-7577INTERCHANGEABLE
WASHER,LOCK
105090-503
5306-00-226-4824INTERCHANGEABLE
BOLT,MACHINE
AEB02C312625WA6AA1
3455-00-231-3486INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10400
5310-00-271-7452INTERCHANGEABLE
WASHER,LOCK
373-0005-000
5960-00-280-6500INTERCHANGEABLE
SHIELD,ELECTRON TUBE
103004
3040-00-368-8340INTERCHANGEABLE
DISC,BRAKE
30155-1
5815-00-392-7871INTERCHANGEABLE
MOUNTING
SM-C-157396
5999-00-418-9348INTERCHANGEABLE
CONTACT,ELECTRICAL
10400
5140-00-540-4209INTERCHANGEABLE
CASE,TWIST DRILL

Frequently Asked Questions

What is NSN 5310-00-543-2740?

NSN 5310-00-543-2740 is a Washer,lock, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-543-2740?

NSN 5310-00-543-2740 has 33 cross-referenced part numbers: MS35333-74 (Wass Srl), MS35333-4 (Zf Industrieantriebe Witten Gmbh), 301551 (Outboard Marine Corp), 144300412 (Elac Sonar Gmbh), 535-1714 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems) and 28 more.

What NSN replaces 5310-00-543-2740?

There are 12 known substitutes for 5310-00-543-2740: 4320-00-066-1459, 5935-00-156-3691, 5331-00-162-5688 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35333-74?

Key specifications for MS35333-74: Material Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN; End Item Identification: MRAP RG-33; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS);5820-01-679-7243 RADIO SET, AN/VRC-135(V)1, HANDHELD, MANPACK AND SMALL FORM FIT (HMS) 2-CHANNEL LEADER RADIO; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Surface Treatment Document and Classification: QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-543-2740 still in active supply?

NSN 5310-00-543-2740 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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