NSN 4820-01-026-6181 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-026-6181. Manufacturer of record part number: 74909140.
Nearby stock numbers← 4820-01-026-6170 Parts Kit, Pressure Regulating VA
·
4820-01-026-6183 Parts Kit, Ball Valve →
4820-01-026-6181 — Valves, Nonpowered
Features
Piston,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Kalmar AC Inc
Identification
NSN: 4820-01-026-6181
NIIN: 010266181
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 74909140
Manufacturer: Kalmar AC Inc
General Description
The Piston,valve, cataloged under National Stock Number 4820-01-026-6181, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kalmar AC Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-026-6181?
NSN 4820-01-026-6181 is a Piston,valve, manufactured by Kalmar AC Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-026-6181?
NSN 4820-01-026-6181 has 1 manufacturer part number on file: 74909140 (Kalmar AC Inc).
What are the specifications of 74909140?
Key specifications for 74909140: Special Features: STEEL; O/A LG 0.828 IN.; OD 0.400 IN.; ID 0.281 IN.; USED ON TRANSMISSION SYSTEM IN. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-026-6181 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.