PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21201Weight,counterbalance

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 3040-01-188-3261 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-188-3261 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-188-3261. Primary manufacturer part number: 21201.
Features
  • Weight,counterbalance — FSC 3040
  • 2 verified cross-references
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Weight,counterbalance, cataloged under National Stock Number 3040-01-188-3261, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. This item has 2 commercial cross-references from 2 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
NSN3040-01-188-3261
Primary Part Number21201
Item NameWeight,counterbalance
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-267-277697T075 INTERCHANGEABLE
Coupling,electrical Conduit
Egs Electrical Group Appleton Div
5310-00-282-954221201 INTERCHANGEABLE
Nut,plain,hexagon
Dresser, Llc
5310-00-486-521421201 INTERCHANGEABLE
Nut,plain,hexagon
Falls Filtration Technologies, Inc.
2915-00-931-296521201 INTERCHANGEABLE
Cover,relief Valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4510-01-116-16192120-1 INTERCHANGEABLE
Holder,water Tumbler
Charles a Starr Company Inc Dba Charles a Starr Company Inc
4720-01-246-804121201 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5330-01-350-046721201 INTERCHANGEABLE
Gasket
Hf Scientific Inc.
4820-01-417-940721201-1004-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-418-004321201-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-424-261221201-1005-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
5305011883261 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
21201 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
Related Parts
5975-00-267-2776INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
97T075
5310-00-282-9542INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21201
5310-00-486-5214INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21201
2915-00-931-2965INTERCHANGEABLE
COVER,RELIEF VALVE
21201
4510-01-116-1619INTERCHANGEABLE
HOLDER,WATER TUMBLER
2120-1
4720-01-246-8041INTERCHANGEABLE
HOSE,PREFORMED
21201
5330-01-350-0467INTERCHANGEABLE
GASKET
21201
4820-01-417-9407INTERCHANGEABLE
PISTON,VALVE
21201-1004-1
4820-01-418-0043INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21201-001
3040-01-424-2612INTERCHANGEABLE
SHAFT,SHOULDERED
21201-1005-1
2590-01-439-9430INTERCHANGEABLE
CAP,FILLER OPENING
2120-1
5360-01-624-4406INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21-201

Frequently Asked Questions

What is NSN 3040-01-188-3261?

NSN 3040-01-188-3261 is a Weight,counterbalance, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-188-3261?

NSN 3040-01-188-3261 has 2 cross-referenced part numbers: 5305011883261 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 21201 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).

What NSN replaces 3040-01-188-3261?

There are 12 known substitutes for 3040-01-188-3261: 5975-00-267-2776, 5310-00-282-9542, 5310-00-486-5214 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21201?

Key specifications for 21201: End Item Identification: 2320-01-107-7155; Special Features: PACKAGE QTY 6. 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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