PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB16024Washer,lock

Diamond Reo Truck Co · NSN 5310-00-012-1326 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-1326 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-1326. Primary manufacturer part number: BB16024.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Material Thickness: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
  • Outside Diameter: 1.661 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 2 STYLE AND A CLASS
  • Hole Diameter: 1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN
  • 11 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-012-1326, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Diamond Reo Truck Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-012-1326
Primary Part NumberBB16024
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDiamond Reo Truck Co
StatusCANCELLED
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Material Thickness0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Outside Diameter1.661 INCHES MAXIMUM IN
Nondefinitive Spec/std Data2 STYLE AND A CLASS
Hole Diameter1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5340-00-282-7028CVC846-8 INTERCHANGEABLE
Clamp,loop
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
5950-00-371-9157 INTERCHANGEABLE
Transformer,power
4910-00-473-7541 INTERCHANGEABLE
Sling,engine Liftin
5310-00-584-7889004-003005-062 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5975-00-968-3288 INTERCHANGEABLE
Conduit Outlet
5940-01-098-7221T68 INTERCHANGEABLE
Terminal,feedthru
Vector Electronics & Technology Inc
5950-01-147-6935280191 INTERCHANGEABLE
Transformer,power
Astra Products Co., Inc. of Tampa Dba Astra Products Co Inc of Tampa
3950-01-449-6632C1544 INTERCHANGEABLE
Brake and Clutch Assembly,winch
Thern Inc
6510-01-594-5708C1544 INTERCHANGEABLE
Applicator,compound Benzoin Tinc
Solventum Us Llc
6510-01-652-7215 INTERCHANGEABLE
Applicator,compound Benzoin Tinc
Cross-Reference Index
Part NumberManufacturer
BB16024 Diamond Reo Truck Co (USA)
121326 Fruehauf Corp (USA)
C1544 American Standard Inc Westinghouse Air Brake Co Div (USA)
MS35338-15 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
85421 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
121326 Navistar International Corporation Dba Navistar (USA)
121326 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
FFW84CLASSASTYLE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
T68 Saf-Holland, Inc. (USA)
121326 General Motors Corp (USA)
WA116 Meritor Industrial Products, Llc (USA)
Related Parts
5340-00-282-7028INTERCHANGEABLE
CLAMP,LOOP
CVC846-8
5950-00-371-9157INTERCHANGEABLE
TRANSFORMER,POWER
4910-00-473-7541INTERCHANGEABLE
SLING,ENGINE LIFTIN
5310-00-584-7889INTERCHANGEABLE
WASHER,LOCK
004-003005-062
5975-00-968-3288INTERCHANGEABLE
CONDUIT OUTLET
5940-01-098-7221INTERCHANGEABLE
TERMINAL,FEEDTHRU
T68
5950-01-147-6935INTERCHANGEABLE
TRANSFORMER,POWER
280191
3950-01-449-6632INTERCHANGEABLE
BRAKE AND CLUTCH ASSEMBLY,WINCH
C1544
6510-01-594-5708INTERCHANGEABLE
APPLICATOR,COMPOUND BENZOIN TINC
C1544
6510-01-652-7215INTERCHANGEABLE
APPLICATOR,COMPOUND BENZOIN TINC

Frequently Asked Questions

What is NSN 5310-00-012-1326?

NSN 5310-00-012-1326 is a Washer,lock, manufactured by Diamond Reo Truck Co, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-012-1326?

NSN 5310-00-012-1326 has 11 cross-referenced part numbers: BB16024 (Diamond Reo Truck Co), 121326 (Fruehauf Corp), C1544 (American Standard Inc Westinghouse Air Brake Co Div), MS35338-15 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 85421 (Brockway Motor Trucks Div of Mack Trucks Inc) and 6 more.

What NSN replaces 5310-00-012-1326?

There are 10 known substitutes for 5310-00-012-1326: 5340-00-282-7028, 5950-00-371-9157, 4910-00-473-7541 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BB16024?

Key specifications for BB16024: Style Designator: SPLIT HELICAL-RIGHT HAND; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Material Thickness: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Outside Diameter: 1.661 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-012-1326 still in active supply?

NSN 5310-00-012-1326 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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