PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7435Pin,piston

Hdt Expeditionary Systems Inc · NSN 4310-00-021-1881 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-021-1881 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-021-1881. Primary manufacturer part number: 7435.
Features
  • Pin,piston — FSC 4310
  • 5 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Pin,piston, cataloged under National Stock Number 4310-00-021-1881, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePin,piston
FSC / FSG4310 — No Item Name Available (FSG 43)
ManufacturersDavey Compressor Co Div of Keco Industries Inc (CAGE 16004); Drs Environmental Systems Inc (CAGE 5RQL2); Hdt Expeditionary Systems Inc (CAGE 92878)
Technical Specifications
ParameterValue
NSN4310-00-021-1881
Primary Part Number7435
Item NamePin,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5815-00-125-49147435 INTERCHANGEABLE
Bar,punch,teletypewriter
Telemechanics Inc
4730-00-196-2058A733S-97CFB INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
3030-00-230-357215435 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
5930-00-358-76847435 INTERCHANGEABLE
Switch
Cole Hersee Company
5330-01-033-81297435 INTERCHANGEABLE
Gasket Set
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4820-01-355-62947435 INTERCHANGEABLE
Valve,safety Relief
Adams J E Industries Ltd
Cross-Reference Index
Part NumberManufacturer
7435 Davey Compressor Co Div of Keco Industries Inc (USA)
10570PC86 Drs Environmental Systems Inc (USA)
10570PC86 Davey Compressor Co Div of Keco Industries Inc (USA)
7435 PRIMARY Hdt Expeditionary Systems Inc (USA)
7435 Drs Environmental Systems Inc (USA)
Related Parts
5815-00-125-4914INTERCHANGEABLE
BAR,PUNCH,TELETYPEWRITER
7435
4730-00-196-2058INTERCHANGEABLE
NIPPLE,PIPE
A733S-97CFB
3030-00-230-3572INTERCHANGEABLE
BELT,V
15435
5930-00-358-7684INTERCHANGEABLE
SWITCH
7435
5330-01-033-8129INTERCHANGEABLE
GASKET SET
7435
4820-01-355-6294INTERCHANGEABLE
VALVE,SAFETY RELIEF
7435

Frequently Asked Questions

What is NSN 4310-00-021-1881?

NSN 4310-00-021-1881 is a Pin,piston, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-021-1881?

NSN 4310-00-021-1881 has 5 cross-referenced part numbers: 7435 (Davey Compressor Co Div of Keco Industries Inc), 10570PC86 (Drs Environmental Systems Inc), 10570PC86 (Davey Compressor Co Div of Keco Industries Inc), 7435 (Hdt Expeditionary Systems Inc), 7435 (Drs Environmental Systems Inc).

What NSN replaces 4310-00-021-1881?

There are 6 known substitutes for 4310-00-021-1881: 5815-00-125-4914, 4730-00-196-2058, 3030-00-230-3572 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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