PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28X870Washer,lock

Kersey / American Lafrance a Div of Figgie International Inc · NSN 5310-00-264-1993 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-264-1993 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-264-1993. Primary manufacturer part number: 28X870.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: NICKEL OVERALL
  • Outside Diameter: 0.9057 INCHES NOMINAL IN
  • Material Thickness: 0.156 INCHES NOMINAL IN
  • Hole Diameter: 0.5937 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 3 verified cross-references
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 5310-00-264-1993, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kersey / American Lafrance a Div of Figgie International Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-264-1993
Primary Part Number28X870
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKersey / American Lafrance a Div of Figgie International Inc
StatusACTIVE
MaterialSTEEL OVERALL
Surface TreatmentNICKEL OVERALL
Outside Diameter0.9057 INCHES NOMINAL IN
Material Thickness0.156 INCHES NOMINAL IN
Hole Diameter0.5937 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5960-00-107-758322004 INTERCHANGEABLE
Electron Tube
Gaf Corp
3110-00-156-3444FS88501-1V1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
4730-00-184-91241103 3-4X1-2 INTERCHANGEABLE
Elbow,pipe
Flagg Stanley G & Co Inc Dba Flagg Brass
4730-00-231-3961 INTERCHANGEABLE
Elbow,pipe to Tube
6645-00-333-3354 INTERCHANGEABLE
Bridge Assy,center
4030-00-880-3096 INTERCHANGEABLE
Thimble,rope
5120-00-883-624422004 INTERCHANGEABLE
Clamp,c
Wilton Corp Wilton Tool Div
5910-00-980-7537 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
5940-00-983-6099672 GP 04 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
2990-01-037-152522004 INTERCHANGEABLE
Muffler,exhaust
Walker Mfg Co
Cross-Reference Index
Part NumberManufacturer
28X870 Kersey / American Lafrance a Div of Figgie International Inc (USA)
22004 Kidde Inc Walter Kidde Div Portable Cylinder Opns (USA)
22004 Kidde-Fenwal, Llc (USA)
Related Parts
5960-00-107-7583INTERCHANGEABLE
ELECTRON TUBE
22004
3110-00-156-3444INTERCHANGEABLE
BEARING,BALL,ANNULAR
FS88501-1V1
4730-00-184-9124INTERCHANGEABLE
ELBOW,PIPE
1103 3-4X1-2
4730-00-231-3961INTERCHANGEABLE
ELBOW,PIPE TO TUBE
6645-00-333-3354INTERCHANGEABLE
BRIDGE ASSY,CENTER
4030-00-880-3096INTERCHANGEABLE
THIMBLE,ROPE
5120-00-883-6244INTERCHANGEABLE
CLAMP,C
22004
5910-00-980-7537INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
5940-00-983-6099INTERCHANGEABLE
TERMINAL BOARD
672 GP 04
2990-01-037-1525INTERCHANGEABLE
MUFFLER,EXHAUST
22004
5962-01-116-9907INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
22004
6515-01-144-2612INTERCHANGEABLE
SPECULUM,OTOSCOPE
22004

Frequently Asked Questions

What is NSN 5310-00-264-1993?

NSN 5310-00-264-1993 is a Washer,lock, manufactured by Kersey / American Lafrance a Div of Figgie International Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-264-1993?

NSN 5310-00-264-1993 has 3 cross-referenced part numbers: 28X870 (Kersey / American Lafrance a Div of Figgie International Inc), 22004 (Kidde Inc Walter Kidde Div Portable Cylinder Opns), 22004 (Kidde-Fenwal, Llc).

What NSN replaces 5310-00-264-1993?

There are 12 known substitutes for 5310-00-264-1993: 5960-00-107-7583, 3110-00-156-3444, 4730-00-184-9124 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28X870?

Key specifications for 28X870: Material: STEEL OVERALL; Surface Treatment: NICKEL OVERALL; Outside Diameter: 0.9057 INCHES NOMINAL IN; Material Thickness: 0.156 INCHES NOMINAL IN. 6 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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