PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D7728-3-4Trunnion Valve Spoo

Chief of Engineers Dept of Army · NSN 2520-00-740-9087 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-740-9087 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-740-9087. Primary manufacturer part number: D7728-3-4.
Features
  • Trunnion Valve Spoo — FSC 2520
  • 9 verified cross-references
  • Primary manufacturer: Chief of Engineers Dept of Army
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Trunnion Valve Spoo, cataloged under National Stock Number 2520-00-740-9087, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Chief of Engineers Dept of Army. This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTrunnion Valve Spoo
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersGeneral Motors Corp (CAGE 24617); Lockwood Corp (CAGE 12472); Chief of Engineers Dept of Army (CAGE 81336); Diamond Reo Truck Co (CAGE 56442); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207)
Technical Specifications
ParameterValue
NSN2520-00-740-9087
Primary Part NumberD7728-3-4
Item NameTrunnion Valve Spoo
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerChief of Engineers Dept of Army
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-00-060-8159N11966 INTERCHANGEABLE
Liner,cylinder
Leslie Controls, Inc. Dba Leslie Controls Inc
5315-00-234-7052 INTERCHANGEABLE
Pin,straight,headless
3810-00-600-88191045Z941 INTERCHANGEABLE
Seal Kit,motor
Morris Material Handling, Inc.
5360-00-757-600011966 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5360-00-816-822711966 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5950-00-864-814911966 INTERCHANGEABLE
Transformer,audio Frequency
Magnetek Inc Lighting Products Group
5930-00-955-5705F5SECTI0N INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5360-01-333-513911966 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems
4720-01-359-648311966 INTERCHANGEABLE
Hose Assembly,nonmetallic
Haldex Brake Products Corporation
2930-01-594-686811966 INTERCHANGEABLE
Cap,filler Opening
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
2297594 General Motors Corp (USA)
11966 Lockwood Corp (USA)
D7728-3-4 PRIMARY Chief of Engineers Dept of Army (USA)
KC9629 Diamond Reo Truck Co (USA)
7409087 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
2297594 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
2297594 General Motors Llc Dba General Motors Llc (USA)
210E17 Diamond Reo Truck Co (USA)
M2020468 PRIMARY Garwood/feller Inc Garwood Winch Div (USA)
Related Parts
4820-00-060-8159INTERCHANGEABLE
LINER,CYLINDER
N11966
5315-00-234-7052INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
3810-00-600-8819INTERCHANGEABLE
SEAL KIT,MOTOR
1045Z941
5360-00-757-6000INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11966
5360-00-816-8227INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11966
5950-00-864-8149INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
11966
5930-00-955-5705INTERCHANGEABLE
SWITCH,ROTARY
F5SECTI0N
5360-01-333-5139INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11966
4720-01-359-6483INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
11966
2930-01-594-6868INTERCHANGEABLE
CAP,FILLER OPENING
11966

Frequently Asked Questions

What is NSN 2520-00-740-9087?

NSN 2520-00-740-9087 is a Trunnion Valve Spoo, manufactured by Chief of Engineers Dept of Army, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-740-9087?

NSN 2520-00-740-9087 has 9 cross-referenced part numbers: 2297594 (General Motors Corp), 11966 (Lockwood Corp), D7728-3-4 (Chief of Engineers Dept of Army), KC9629 (Diamond Reo Truck Co), 7409087 (U S Army Tank Automotive Command Amsta-Im-Mm) and 4 more.

What NSN replaces 2520-00-740-9087?

There are 10 known substitutes for 2520-00-740-9087: 4820-00-060-8159, 5315-00-234-7052, 3810-00-600-8819 and 7 more. Verify interchangeability with system specifications before substitution.

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