PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0-521-326Valve Assy-Check---

Mission Systems Orchard Park Inc · NSN 1660-00-487-0075 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-487-0075 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-487-0075. Primary manufacturer part number: 0-521-326.
Features
  • Valve Assy-Check--- — FSC 1660
  • 3 verified cross-references
  • Primary manufacturer: Mission Systems Orchard Park Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assy-Check---, cataloged under National Stock Number 1660-00-487-0075, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Mission Systems Orchard Park Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve Assy-Check---
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersMission Systems Orchard Park Inc (CAGE 04577); Fluid Power, Inc. (CAGE 99227); Ingersoll-Rand Company Dba Ingersoll-Rand (CAGE 03990)
Technical Specifications
ParameterValue
NSN1660-00-487-0075
Primary Part Number0-521-326
Item NameValve Assy-Check---
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-017-9843 INTERCHANGEABLE
Screw,cap,hexagon Head
5930-00-108-70061520230-2 INTERCHANGEABLE
Switch,toggle
Te Connectivity Corporation
6240-00-193-0934988 INTERCHANGEABLE
Lamp,incandescent
American National Standards Institute Incorporated Dba American National Standards Institute
6625-00-263-315449421 INTERCHANGEABLE
Adapter,test
Naval Ship Systems Command
2805-00-383-9015005852 INTERCHANGEABLE
Valve,poppet,engine
Caterpillar Inc Div Caterpillar Defense
1730-00-391-7932988-010 INTERCHANGEABLE
Jack,hydraulic,tripod
Columbus Jack Corporation Div Columbus Jack
4730-00-640-1172 INTERCHANGEABLE
Strainer,sediment
5330-00-657-28671060 INTERCHANGEABLE
Gasket Head
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
7530-00-724-6300 INTERCHANGEABLE
Paperboard,drawing
4730-00-883-0461 INTERCHANGEABLE
Strainer,sediment
Cross-Reference Index
Part NumberManufacturer
0-521-326 Mission Systems Orchard Park Inc (USA)
988 Fluid Power, Inc. (USA)
0-521-326 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
5305-00-017-9843INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5930-00-108-7006INTERCHANGEABLE
SWITCH,TOGGLE
1520230-2
6240-00-193-0934INTERCHANGEABLE
LAMP,INCANDESCENT
988
6625-00-263-3154INTERCHANGEABLE
ADAPTER,TEST
49421
2805-00-383-9015INTERCHANGEABLE
VALVE,POPPET,ENGINE
005852
1730-00-391-7932INTERCHANGEABLE
JACK,HYDRAULIC,TRIPOD
988-010
4730-00-640-1172INTERCHANGEABLE
STRAINER,SEDIMENT
5330-00-657-2867INTERCHANGEABLE
GASKET HEAD
1060
7530-00-724-6300INTERCHANGEABLE
PAPERBOARD,DRAWING
4730-00-883-0461INTERCHANGEABLE
STRAINER,SEDIMENT
4930-00-975-9541INTERCHANGEABLE
OILER,HAND
8690
3442-01-148-1687INTERCHANGEABLE
CABLE,HYDRAULIC PRESS

Frequently Asked Questions

What is NSN 1660-00-487-0075?

NSN 1660-00-487-0075 is a Valve Assy-Check---, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-487-0075?

NSN 1660-00-487-0075 has 3 cross-referenced part numbers: 0-521-326 (Mission Systems Orchard Park Inc), 988 (Fluid Power, Inc.), 0-521-326 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 1660-00-487-0075?

There are 12 known substitutes for 1660-00-487-0075: 5305-00-017-9843, 5930-00-108-7006, 6240-00-193-0934 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com