PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HY2Valve,linear,directional Control

A a a Products Co · NSN 4820-00-401-0374 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-401-0374 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-401-0374. Primary manufacturer part number: HY2.
Features
  • Valve,linear,directional Control — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: A a a Products Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-00-401-0374, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is A a a Products Co. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-401-0374
Primary Part NumberHY2
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerA a a Products Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-003-90495100101 INTERCHANGEABLE
Retainer,roller,bearing
Hamilton Sundstrand Corporation
5120-00-596-1426 INTERCHANGEABLE
Wrench,spanner
5120-00-596-1427 INTERCHANGEABLE
Wrench,spanner
5360-01-162-352751001-01 INTERCHANGEABLE
Spring
Star Manufacturing International Inc. Dba Lang Manufacturing Company
Cross-Reference Index
Part NumberManufacturer
HY2 PRIMARY A a a Products Co (USA)
510-0101 PRIMARY Tyco Fire Products Lp (USA)
Related Parts
3110-00-003-9049INTERCHANGEABLE
RETAINER,ROLLER,BEARING
5100101
5120-00-596-1426INTERCHANGEABLE
WRENCH,SPANNER
5120-00-596-1427INTERCHANGEABLE
WRENCH,SPANNER
5360-01-162-3527INTERCHANGEABLE
SPRING
51001-01

Frequently Asked Questions

What is NSN 4820-00-401-0374?

NSN 4820-00-401-0374 is a Valve,linear,directional Control, manufactured by A a a Products Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-401-0374?

NSN 4820-00-401-0374 has 2 cross-referenced part numbers: HY2 (A a a Products Co), 510-0101 (Tyco Fire Products Lp).

What NSN replaces 4820-00-401-0374?

There are 4 known substitutes for 4820-00-401-0374: 3110-00-003-9049, 5120-00-596-1426, 5120-00-596-1427 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HY2?

Key specifications for HY2: Special Features: ALUM BODY;STEEL SPOOL;VITON-A PKG;MEDIA AIR OR GAS;250 PSI;METHOD OF OPERATION LEVER W/SPRING RETURN;SIDE PORTED W/5 THD INTERNAL PIPE PORTS SZ 0.250-18;BASE MTD W/4 MTG HOLES IN RECTANGULAR PATTERN HOLE SZ 0.190 IN.;CENTER TO CENTER DISTANCE ALONG LG 3.344 IN. 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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