PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4H90621-101BValve,linear,directional Control

Lockheed Martin Corp · NSN 4820-00-161-4098 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-161-4098 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-161-4098. Primary manufacturer part number: 4H90621-101B.
Features
  • Valve,linear,directional Control — FSC 4820
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING
  • 2 verified cross-references
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-00-161-4098, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-161-4098
Primary Part Number4H90621-101B
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SOURCE CONTROL DRAWING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4530-00-248-0535L-03-04-0007 INTERCHANGEABLE
Cable,ignition
Todd Combustion Inc
5330-00-935-2045 INTERCHANGEABLE
Seal,plain Encased
5310-01-017-86675046-1 INTERCHANGEABLE
Washer,key
L3harris Technologies, Inc. Div Space and Airborne Systems
3040-01-068-764754725 INTERCHANGEABLE
Plate,brake
Paccar Winch Inc Dba Paccar Winch Division
2530-01-112-0170 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
4520-01-331-657750461 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
6850-01-588-420350461 INTERCHANGEABLE
Cleaning Compound,solvent
Mil-Comm Products Co, Inc Div Mil-Comm
Cross-Reference Index
Part NumberManufacturer
4H90621-101B Lockheed Martin Corp (USA)
5046-1 Pneudraulics, Inc. (USA)
Related Parts
4530-00-248-0535INTERCHANGEABLE
CABLE,IGNITION
L-03-04-0007
5330-00-935-2045INTERCHANGEABLE
SEAL,PLAIN ENCASED
5310-01-017-8667INTERCHANGEABLE
WASHER,KEY
5046-1
3040-01-068-7647INTERCHANGEABLE
PLATE,BRAKE
54725
2530-01-112-0170INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
4520-01-331-6577INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
50461
6850-01-588-4203INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
50461

Frequently Asked Questions

What is NSN 4820-00-161-4098?

NSN 4820-00-161-4098 is a Valve,linear,directional Control, manufactured by Lockheed Martin Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-161-4098?

NSN 4820-00-161-4098 has 2 cross-referenced part numbers: 4H90621-101B (Lockheed Martin Corp), 5046-1 (Pneudraulics, Inc.).

What NSN replaces 4820-00-161-4098?

There are 7 known substitutes for 4820-00-161-4098: 4530-00-248-0535, 5330-00-935-2045, 5310-01-017-8667 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4H90621-101B?

Key specifications for 4H90621-101B: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING; Special Features: SIX PORT HOLES PER AND 10050-10,THREE 0.245 IN.MIN,0.251 IN.MAX,DIA MTG HOLES IRREGULARLY SPACED,9.97 IN.LG,2.70 IN.W,2.00 IN.H,20 GAL PER MIN.;COGNIZANT SERVICE:AIR FORCE IN. 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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