PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27612-02HValve,safety Relief

Griswold Industries Dba Cla-Val Co · NSN 4820-01-478-3265 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-478-3265 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-478-3265. Primary manufacturer part number: 27612-02H.
Features
  • Valve,safety Relief — FSC 4820
  • 3 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 Valve,safety Relief, cataloged under National Stock Number 4820-01-478-3265, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersGriswold Industries Dba Cla-Val Co (CAGE 86184)
Technical Specifications
ParameterValue
NSN4820-01-478-3265
Primary Part Number27612-02H
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2530-00-164-0986037341 INTERCHANGEABLE
Piston,hydraulic Brake
Caterpillar Inc Div Caterpillar Defense
1650-00-348-632627612 INTERCHANGEABLE
Head,valve
Rogerson Aircraft Equipment Group
2590-00-369-811327612 INTERCHANGEABLE
Stand,support
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5935-01-092-9707 INTERCHANGEABLE
Connector,receptacle,electrical
5930-01-166-291727612 INTERCHANGEABLE
Switch,sensitive
Alliance Laundry Systems Llc
3120-01-235-1701 INTERCHANGEABLE
Bearing,sleeve
6630-01-536-955927612 INTERCHANGEABLE
Calibrator Cartridge
Nova Biomedical Corp
6910-01-585-886127612 INTERCHANGEABLE
Tess Ground Systems Mcc I O Unit
Inter-Coastal Electronics, Llc
Cross-Reference Index
Part NumberManufacturer
27612 Griswold Industries Dba Cla-Val Co (USA)
27612 ASSY 276120-02H Griswold Industries Dba Cla-Val Co (USA)
27612-02H PRIMARY Griswold Industries Dba Cla-Val Co (USA)
Related Parts
2530-00-164-0986INTERCHANGEABLE
PISTON,HYDRAULIC BRAKE
037341
1650-00-348-6326INTERCHANGEABLE
HEAD,VALVE
27612
2590-00-369-8113INTERCHANGEABLE
STAND,SUPPORT
27612
5935-01-092-9707INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5930-01-166-2917INTERCHANGEABLE
SWITCH,SENSITIVE
27612
3120-01-235-1701INTERCHANGEABLE
BEARING,SLEEVE
6630-01-536-9559INTERCHANGEABLE
CALIBRATOR CARTRIDGE
27612
6910-01-585-8861INTERCHANGEABLE
TESS GROUND SYSTEMS MCC I O UNIT
27612

Frequently Asked Questions

What is NSN 4820-01-478-3265?

NSN 4820-01-478-3265 is a Valve,safety Relief, 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 4820-01-478-3265?

NSN 4820-01-478-3265 has 3 cross-referenced part numbers: 27612 (Griswold Industries Dba Cla-Val Co), 27612 ASSY 276120-02H (Griswold Industries Dba Cla-Val Co), 27612-02H (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-478-3265?

There are 8 known substitutes for 4820-01-478-3265: 2530-00-164-0986, 1650-00-348-6326, 2590-00-369-8113 and 5 more. Verify interchangeability with system specifications before substitution.

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