PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21303Clamp,machine,hold Down

Jergens Inc Div Tooling Components Division · NSN 3460-01-129-6403 · FSC 3460 · No Item Name Available
Verified by PartsTable
NSN 3460-01-129-6403 — this item is cataloged by the U.S. Government under National Stock Number 3460-01-129-6403. Primary manufacturer part number: 21303.
Features
  • Clamp,machine,hold Down — FSC 3460
  • General Characteristics Item Description: STEEL; BLACK OXIDE FINISH; HEXAGON NUT; 3/8-16 IN. THREAD; OVERALL LENGTH 2.500 IN. IN
  • 2 verified cross-references
  • Primary manufacturer: Jergens Inc Div Tooling Components Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Clamp,machine,hold Down, cataloged under National Stock Number 3460-01-129-6403, is classified within Federal Supply Class 3460 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Jergens Inc Div Tooling Components Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN3460-01-129-6403
Primary Part Number21303
Item NameClamp,machine,hold Down
FSC / FSG3460 / 34 — No Item Name Available
ManufacturerJergens Inc Div Tooling Components Division
StatusACTIVE
General Characteristics Item DescriptionSTEEL; BLACK OXIDE FINISH; HEXAGON NUT; 3/8-16 IN. THREAD; OVERALL LENGTH 2.500 IN. IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-010-0653HRP43M INTERCHANGEABLE
Socket,plug-in Electronic Compon
Armel De Llc Dba Armel Electronics
5999-00-863-3730 INTERCHANGEABLE
Contact Assembly,electrical
1630-00-865-0548 INTERCHANGEABLE
Sleeve and Shuttle Assembly
4320-01-194-832821303 INTERCHANGEABLE
Trunnion,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
5940-01-204-548321303 INTERCHANGEABLE
Terminal Board
Te Connectivity Corporation
3040-01-449-144021303-1008-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-449-147121303-1009-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-449-158421303-1006-1 INTERCHANGEABLE
Guide,valve Stem
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-449-158921303-1012-1 INTERCHANGEABLE
Cap,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-449-159121303-1011-1 INTERCHANGEABLE
Cap,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
HR-4 Jergens Inc Div Tooling Components Division (USA)
21303 PRIMARY Jergens Inc Div Tooling Components Division (USA)
Related Parts
5935-00-010-0653INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
HRP43M
5999-00-863-3730INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
1630-00-865-0548INTERCHANGEABLE
SLEEVE AND SHUTTLE ASSEMBLY
4320-01-194-8328INTERCHANGEABLE
TRUNNION,PUMP
21303
5940-01-204-5483INTERCHANGEABLE
TERMINAL BOARD
21303
3040-01-449-1440INTERCHANGEABLE
SHAFT,SHOULDERED
21303-1008-1
3040-01-449-1471INTERCHANGEABLE
SHAFT,SHOULDERED
21303-1009-1
4810-01-449-1584INTERCHANGEABLE
GUIDE,VALVE STEM
21303-1006-1
4810-01-449-1589INTERCHANGEABLE
CAP,VALVE
21303-1012-1
4810-01-449-1591INTERCHANGEABLE
CAP,VALVE
21303-1011-1
6110-01-539-1090INTERCHANGEABLE
DISTRIBUTION BOX
2532
6110-01-612-6640INTERCHANGEABLE
ISOLATOR BATTERY
2-130-3

Frequently Asked Questions

What is NSN 3460-01-129-6403?

NSN 3460-01-129-6403 is a Clamp,machine,hold Down, manufactured by Jergens Inc Div Tooling Components Division, classified under FSC 3460 (No Item Name Available). Status: active.

What are the part numbers for NSN 3460-01-129-6403?

NSN 3460-01-129-6403 has 2 cross-referenced part numbers: HR-4 (Jergens Inc Div Tooling Components Division), 21303 (Jergens Inc Div Tooling Components Division).

What NSN replaces 3460-01-129-6403?

There are 12 known substitutes for 3460-01-129-6403: 5935-00-010-0653, 5999-00-863-3730, 1630-00-865-0548 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21303?

Key specifications for 21303: Part Name Assigned by Controlling Agency: CLAMP,MACHINE STRAP; General Characteristics Item Description: STEEL; BLACK OXIDE FINISH; HEXAGON NUT; 3/8-16 IN. THREAD; OVERALL LENGTH 2.500 IN. IN. 2 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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