PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74909128Plunger,inching Valve

Kalmar AC Inc · NSN 2520-01-026-2056 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-026-2056 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-026-2056. Primary manufacturer part number: 74909128.
Features
  • Plunger,inching Valve — FSC 2520
  • General Characteristics Item Description: STEEL;3.375 IN.LG;0.688 IN.DIA;30 DEG CHAMFER 0.062 IN.LG;THREADED HOLE 0.312-24 UNF RH 2B 0.875 IN.DEEP IN
  • 3 verified cross-references
  • Primary manufacturer: Kalmar AC Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Plunger,inching Valve, cataloged under National Stock Number 2520-01-026-2056, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Kalmar AC Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-026-2056
Primary Part Number74909128
Item NamePlunger,inching Valve
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerKalmar AC Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL;3.375 IN.LG;0.688 IN.DIA;30 DEG CHAMFER 0.062 IN.LG;THREADED HOLE 0.312-24 UNF RH 2B 0.875 IN.DEEP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2520-01-026-314071002947 INTERCHANGEABLE
Disk,clutch,vehicular
Kalmar AC Inc
Cross-Reference Index
Part NumberManufacturer
4909314 Kalmar AC Inc (USA)
10-01-239-002 Liberty Ventures Inti, Llc (USA)
74909128 PRIMARY Kalmar AC Inc (USA)
Related Parts
2520-01-026-3140INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
71002947

Frequently Asked Questions

What is NSN 2520-01-026-2056?

NSN 2520-01-026-2056 is a Plunger,inching Valve, manufactured by Kalmar AC Inc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-026-2056?

NSN 2520-01-026-2056 has 3 cross-referenced part numbers: 4909314 (Kalmar AC Inc), 10-01-239-002 (Liberty Ventures Inti, Llc), 74909128 (Kalmar AC Inc).

What NSN replaces 2520-01-026-2056?

There is 1 known substitute for 2520-01-026-2056: 2520-01-026-3140. Verify interchangeability with system specifications before substitution.

What are the specifications of 74909128?

Key specifications for 74909128: General Characteristics Item Description: STEEL;3.375 IN.LG;0.688 IN.DIA;30 DEG CHAMFER 0.062 IN.LG;THREADED HOLE 0.312-24 UNF RH 2B 0.875 IN.DEEP IN. 1 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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