PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1A60423Washer,lock

Napco International Llc Dba Napco International Inc · NSN 5310-00-261-7367 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-261-7367 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-261-7367. Primary manufacturer part number: 1A60423.
Features
  • Washer,lock — FSC 5310
  • Style Designator: FLAT EXTERNAL TEETH
  • Hole Diameter: 1.142 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Material Thickness: 0.040 INCHES NOMINAL IN
  • Outside Diameter: 1.827 INCHES NOMINAL IN
  • 8 verified cross-references
  • Primary manufacturer: Napco International Llc Dba Napco International Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-261-7367, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-261-7367
Primary Part Number1A60423
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusCANCELLED
Style DesignatorFLAT EXTERNAL TEETH
Hole Diameter1.142 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Material Thickness0.040 INCHES NOMINAL IN
Outside Diameter1.827 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5330-00-152-8679655116 INTERCHANGEABLE
Retainer,packing
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5133-00-189-9298 INTERCHANGEABLE
Drill,twist
5950-00-647-9260 INTERCHANGEABLE
Coil,radio Frequency
3445-01-090-1760350700193 INTERCHANGEABLE
Blade,metal Shearing
Rw Acquisition, Llc Dba Roper Whitney Company
4730-01-105-7522BD55001-12-12-01 INTERCHANGEABLE
Swivel Joint,hydraulic
Danfoss Power Solutions II, Llc
2520-01-211-1084113801 INTERCHANGEABLE
Shifter Fork,vehicular
Dana Commercial Vehicle Products, Llc
5315-01-220-030111380-1 INTERCHANGEABLE
Pin,straight,headless
Breeze-Eastern Llc
4940-01-264-564911381 INTERCHANGEABLE
Shaft Assembly
L & R Manufacturing Company
5330-01-312-70221138-1 INTERCHANGEABLE
Retainer,packing
R & D Machine Rafael Anaya Div Defense Logistics Agency
2920-01-343-31320142499T77 INTERCHANGEABLE
Stator,engine Generator
Prestolite Electric Inc
Cross-Reference Index
Part NumberManufacturer
1138-1 Itw Shakeproof Automotive Products (USA)
406K19 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
1AL0423 Napco International Llc Dba Napco International Inc (USA)
655116 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
1138-01 Itw Shakeproof Automotive Products (USA)
852730 Clark Material Handling Company (USA)
852730 Clark Equipment Co (USA)
1A60423 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
5330-00-152-8679INTERCHANGEABLE
RETAINER,PACKING
655116
5133-00-189-9298INTERCHANGEABLE
DRILL,TWIST
5950-00-647-9260INTERCHANGEABLE
COIL,RADIO FREQUENCY
3445-01-090-1760INTERCHANGEABLE
BLADE,METAL SHEARING
350700193
4730-01-105-7522INTERCHANGEABLE
SWIVEL JOINT,HYDRAULIC
BD55001-12-12-01
2520-01-211-1084INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
113801
5315-01-220-0301INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
11380-1
4940-01-264-5649INTERCHANGEABLE
SHAFT ASSEMBLY
11381
5330-01-312-7022INTERCHANGEABLE
RETAINER,PACKING
1138-1
2920-01-343-3132INTERCHANGEABLE
STATOR,ENGINE GENERATOR
0142499T77
3950-01-695-3190INTERCHANGEABLE
PARTS KIT,WINCH

Frequently Asked Questions

What is NSN 5310-00-261-7367?

NSN 5310-00-261-7367 is a Washer,lock, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-261-7367?

NSN 5310-00-261-7367 has 8 cross-referenced part numbers: 1138-1 (Itw Shakeproof Automotive Products), 406K19 (Hyster-Yale Group, Inc. Dba Yale Materials Handling), 1AL0423 (Napco International Llc Dba Napco International Inc), 655116 (Chrysler Realty Company Llc Dba Daimler Chrysler), 1138-01 (Itw Shakeproof Automotive Products) and 3 more.

What NSN replaces 5310-00-261-7367?

There are 11 known substitutes for 5310-00-261-7367: 5330-00-152-8679, 5133-00-189-9298, 5950-00-647-9260 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1A60423?

Key specifications for 1A60423: Style Designator: FLAT EXTERNAL TEETH; Hole Diameter: 1.142 INCHES NOMINAL IN; Material: STEEL OVERALL; Material Thickness: 0.040 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-261-7367 still in active supply?

NSN 5310-00-261-7367 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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