PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

42577Disk,valve

Name: 42577
SKU: 1650-00-055-2922

Woodward Hrt Inc · NSN 1650-00-055-2922 · FSC 1650 · No Item Name Available

Verified by PartsTable

NSN 1650-00-055-2922 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-055-2922. Primary manufacturer part number: 42577.

1650-00-055-2922 — No Item Name Available illustration

Features

Disk,valve — FSC 1650
1 verified cross-reference
Primary manufacturer: Woodward Hrt Inc

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation

General Description

The Disk,valve, cataloged under National Stock Number 1650-00-055-2922, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Woodward Hrt Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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

Parameter	Value
NSN	1650-00-055-2922
Primary Part Number	42577
Item Name	Disk,valve
FSC / FSG	1650 / 16 — No Item Name Available
Manufacturer	Woodward Hrt Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 7

2530-00-626-4218 INTERCHANGEABLE

Brake,shoe Type

4920-00-838-6264 INTERCHANGEABLE

Network Module Assy

3040-01-074-1972 INTERCHANGEABLE

Parts Kit,clutch Control Lever

3010-01-165-3896071178-8 INTERCHANGEABLE

Clutch,assembly Kit

Sea Cure Technology, Inc

3020-01-314-5107369758PC3 INTERCHANGEABLE

Gear,bevel

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

2040-01-444-8305 INTERCHANGEABLE

Clutch,connectin Kit

4810-01-647-979842577 INTERCHANGEABLE

Plug,rotary,valve

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems

Cross-Reference Index

Part Number	Manufacturer
42577 PRIMARY	Woodward Hrt Inc (USA)

Related Parts

2530-00-626-4218INTERCHANGEABLE

BRAKE,SHOE TYPE

4920-00-838-6264INTERCHANGEABLE

NETWORK MODULE ASSY

3040-01-074-1972INTERCHANGEABLE

PARTS KIT,CLUTCH CONTROL LEVER

3010-01-165-3896INTERCHANGEABLE

CLUTCH,ASSEMBLY KIT

071178-8

3020-01-314-5107INTERCHANGEABLE

GEAR,BEVEL

369758PC3

2040-01-444-8305INTERCHANGEABLE

CLUTCH,CONNECTIN KIT

4810-01-647-9798INTERCHANGEABLE

PLUG,ROTARY,VALVE

42577

Frequently Asked Questions

What is NSN 1650-00-055-2922?

NSN 1650-00-055-2922 is a Disk,valve, manufactured by Woodward Hrt Inc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-055-2922?

NSN 1650-00-055-2922 has 1 cross-referenced part number: 42577 (Woodward Hrt Inc).

What NSN replaces 1650-00-055-2922?

There are 7 known substitutes for 1650-00-055-2922: 2530-00-626-4218, 4920-00-838-6264, 3040-01-074-1972 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42577?

Key specifications for 42577: End Item Identification: AH-1S. 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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