NSN 5306-00-430-9502 · NIIN 004309502 · Part number 21123
Komatsu America Corporation · FSC 5306 — Bolts · FSG 53 — Hardware and Abrasives · CAGE 23926
Government record, cited
NSN 5306-00-430-9502 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-430-9502. Manufacturer of record part number: 21123.
The Bolt,machine, cataloged under National Stock Number 5306-00-430-9502, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Komatsu America Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5306-00-430-9502
Primary Part Number
21123
Item Name
Bolt,machine
FSC / FSG
5306 / 53 — Bolts
Manufacturer
Komatsu America Corporation
Status
ACTIVE
Head Height
0.750 INCHES NOMINAL IN
Fastener Length
1.750 INCHES NOMINAL IN
Thread Length
1.500 INCHES MINIMUM IN
Nominal Thread Diameter
1.000 INCHES IN
Features Provided
FINISHED HEAD
Head Style
HEXAGON
Thread Direction
RIGHT-HAND
Width Between Flats
1.312 INCHES NOMINAL IN
Thread Class
2A A
Thread Quantity Per Inch
8
Thread Series Designator
UNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-00-469-396321123POSSIBLE MATCH
SCREW,DRIVE
Possible match (shared part number)Industrial Technologies and Services Llc
5945-00-501-9722L218806POSSIBLE MATCH
RELAY,ELECTROMAGNETIC
Possible match (shared part number)Raytheon Company Dba Raytheon Co
5905-01-260-794521123POSSIBLE MATCH
RESISTOR,VARIABLE,NONWIRE WOUND,
Possible match (shared part number)Daytronic Corporation
5930-01-299-436721123POSSIBLE MATCH
SWITCH,TOGGLE
Possible match (shared part number)Silver King Refrigeration Inc.
4730-01-304-370121123POSSIBLE MATCH
PLUG,END,PUMP
Possible match (shared part number)Parker Hannifin Corporation Div Hydraulic Systems Division
2530-01-342-524774002994POSSIBLE MATCH
RIM,WHEEL,PNEUMATIC TIRE
Possible match (shared part number)Wheels Now Inc
5935-01-350-192321123POSSIBLE MATCH
BACKSHELL,ELECTRICAL CONNECTOR
Possible match (shared part number)Hf Scientific Inc.
5331-01-449-371721123POSSIBLE MATCH
O-RING
Possible match (shared part number)Paccar Winch Inc Dba Paccar Winch Division
4810-01-451-781421123-850-1POSSIBLE MATCH
SLEEVE AND SLIDE,DIRECTIONAL CON
Possible match (shared part number)Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-451-781521123-1004-1POSSIBLE MATCH
SHAFT,VALVE ASSY
Possible match (shared part number)Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
NSN 5306-00-430-9502 is a Bolt,machine, manufactured by Komatsu America Corporation, classified under FSC 5306, Bolts. Status: active.
What part numbers are listed for NSN 5306-00-430-9502?
NSN 5306-00-430-9502 has 1 manufacturer part number on file: 21123 (Komatsu America Corporation).
What NSN replaces 5306-00-430-9502?
10 possible matches (shared part number, not a government interchangeability claim): 5305-00-469-3963, 5945-00-501-9722, 5905-01-260-7945. Verify interchangeability with system specifications before substitution.
What are the specifications of 21123?
Key specifications for 21123: Head Height: 0.750 INCHES NOMINAL IN; Fastener Length: 1.750 INCHES NOMINAL IN; Thread Length: 1.500 INCHES MINIMUM IN; Nominal Thread Diameter: 1.000 INCHES IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5306-00-430-9502 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.