PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90688DCover Assembly,valve

Griswold Industries Dba Cla-Val Co · NSN 4820-01-181-8528 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-181-8528 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-181-8528. Primary manufacturer part number: 90688D.
Features
  • Cover Assembly,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cover Assembly,valve, cataloged under National Stock Number 4820-01-181-8528, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCover Assembly,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersGriswold Industries Dba Cla-Val Co (CAGE 86184)
Technical Specifications
ParameterValue
NSN4820-01-181-8528
Primary Part Number90688D
Item NameCover Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2530-00-288-61698758255 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
U S Army Tank Automotive Command Amsta-Im-Mm
5950-00-902-8971 INTERCHANGEABLE
Transformer,pulse
4820-01-090-9695C5769K INTERCHANGEABLE
Seat,valve
Griswold Industries Dba Cla-Val Co
4820-01-090-9714C5767D INTERCHANGEABLE
Guide,disk
Griswold Industries Dba Cla-Val Co
8315-01-445-8812155034 INTERCHANGEABLE
Fastener Tape,hook
Velcro Usa Inc
5820-01-479-13799008-1 INTERCHANGEABLE
Linear Driver
Smiths Interconnect Inc Div Smiths Interconnect Inc - Tampa
4610-01-495-663090081 INTERCHANGEABLE
Modification Kit,water Treatment
Camelbak Products, Llc Dba Camelbak
5998-01-541-4287 INTERCHANGEABLE
Electronic Components Assembly
5325-01-732-673990081 INTERCHANGEABLE
Fastener Tape,hook
Velcro Usa Inc
Cross-Reference Index
Part NumberManufacturer
90081 Griswold Industries Dba Cla-Val Co (USA)
90688 Griswold Industries Dba Cla-Val Co (USA)
90688D PRIMARY Griswold Industries Dba Cla-Val Co (USA)
90081 FIND 1 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
2530-00-288-6169INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
8758255
5950-00-902-8971INTERCHANGEABLE
TRANSFORMER,PULSE
4820-01-090-9695INTERCHANGEABLE
SEAT,VALVE
C5769K
4820-01-090-9714INTERCHANGEABLE
GUIDE,DISK
C5767D
8315-01-445-8812INTERCHANGEABLE
FASTENER TAPE,HOOK
155034
5820-01-479-1379INTERCHANGEABLE
LINEAR DRIVER
9008-1
4610-01-495-6630INTERCHANGEABLE
MODIFICATION KIT,WATER TREATMENT
90081
5998-01-541-4287INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5325-01-732-6739INTERCHANGEABLE
FASTENER TAPE,HOOK
90081

Frequently Asked Questions

What is NSN 4820-01-181-8528?

NSN 4820-01-181-8528 is a Cover Assembly,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-181-8528?

NSN 4820-01-181-8528 has 4 cross-referenced part numbers: 90081 (Griswold Industries Dba Cla-Val Co), 90688 (Griswold Industries Dba Cla-Val Co), 90688D (Griswold Industries Dba Cla-Val Co), 90081 FIND 1 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-181-8528?

There are 9 known substitutes for 4820-01-181-8528: 2530-00-288-6169, 5950-00-902-8971, 4820-01-090-9695 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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