PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2WA5-126 GWasher,lock

Mark Controls Corp Pacific Valves Div · NSN 5310-01-161-6141 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-161-6141 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-161-6141. Primary manufacturer part number: 2WA5-126 G.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL A FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Material Document and Classification: ASTM A568 ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
  • Hole Diameter: 0.515 INCHES MINIMUM AND 0.547 INCHES MAXIMUM IN
  • Material Thickness: 0.049 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1008 or Steel Comp 1009 or Steel Comp 1015 or Steel Comp 1018 or Steel Comp 1020 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-161-6141, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mark Controls Corp Pacific Valves Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-161-6141
Primary Part Number2WA5-126 G
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMark Controls Corp Pacific Valves Div
StatusACTIVE
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL A FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Material Document and ClassificationASTM A568 ASSN STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
Hole Diameter0.515 INCHES MINIMUM AND 0.547 INCHES MAXIMUM IN
Material Thickness0.049 INCHES NOMINAL IN
Special Test FeaturesSPECIAL QUALITY CONTROL TESTING
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
7920-00-045-29407920000452940 INTERCHANGEABLE
Pad,scouring
National Industries for the Blind
5815-00-125-34197447 INTERCHANGEABLE
Bar,t,teletypewriter
Telemechanics Inc
5935-00-129-308849382 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Naval Ship Systems Command
2990-00-314-03878716396 INTERCHANGEABLE
Muffler,exhaust
U S Army Tank Automotive Command Amsta-Im-Mm
5962-00-428-7560 INTERCHANGEABLE
Microcircuit,digital
5996-01-024-68567447 INTERCHANGEABLE
Amplifier,radio Frequency
Texas Instruments Incorporated
5962-01-136-0089 INTERCHANGEABLE
Microcircuit
1005-01-225-38207422 INTERCHANGEABLE
Lock,gun Safety
O F Mossberg & Sons Inc
4510-01-260-0110AS-1B INTERCHANGEABLE
Parts Kit,ball Cock
Fluid Handling Llc
Cross-Reference Index
Part NumberManufacturer
2WA5-126 G Mark Controls Corp Pacific Valves Div (USA)
7447 Mark Controls Corp Pacific Valves Div (USA)
V7447 Mark Controls Corp Pacific Valves Div (USA)
2WA5-126 6 Mark Controls Corp Pacific Valves Div (USA)
Related Parts
7920-00-045-2940INTERCHANGEABLE
PAD,SCOURING
7920000452940
5815-00-125-3419INTERCHANGEABLE
BAR,T,TELETYPEWRITER
7447
5935-00-129-3088INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
49382
2990-00-314-0387INTERCHANGEABLE
MUFFLER,EXHAUST
8716396
5962-00-428-7560INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5996-01-024-6856INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
7447
5962-01-136-0089INTERCHANGEABLE
MICROCIRCUIT
1005-01-225-3820INTERCHANGEABLE
LOCK,GUN SAFETY
7422
4510-01-260-0110INTERCHANGEABLE
PARTS KIT,BALL COCK
AS-1B

Frequently Asked Questions

What is NSN 5310-01-161-6141?

NSN 5310-01-161-6141 is a Washer,lock, manufactured by Mark Controls Corp Pacific Valves Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-161-6141?

NSN 5310-01-161-6141 has 4 cross-referenced part numbers: 2WA5-126 G (Mark Controls Corp Pacific Valves Div), 7447 (Mark Controls Corp Pacific Valves Div), V7447 (Mark Controls Corp Pacific Valves Div), 2WA5-126 6 (Mark Controls Corp Pacific Valves Div).

What NSN replaces 5310-01-161-6141?

There are 9 known substitutes for 5310-01-161-6141: 7920-00-045-2940, 5815-00-125-3419, 5935-00-129-3088 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2WA5-126 G?

Key specifications for 2WA5-126 G: Surface Treatment: CADMIUM AND CHROMATE OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL A FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Material Document and Classification: ASTM A568 ASSN STD ALL MATERIAL RESPONSES OVERALL. 11 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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