PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B111-1 3/8IN SET 8PSIValve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-202-9455 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-202-9455 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-202-9455. Primary manufacturer part number: B111-1 3/8IN SET 8PSI.
Features
  • Valve,safety Relief — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-202-9455, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 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)
ManufacturersAnderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343)
Technical Specifications
ParameterValue
NSN4820-01-202-9455
Primary Part NumberB111-1 3/8IN SET 8PSI
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4930-00-528-9075 INTERCHANGEABLE
Lubricator,airline
3120-00-727-0676B11-11 INTERCHANGEABLE
Bearing,sleeve
Roller Bearing Co of America, Inc Div Pic Design
4820-01-202-9799B111-1FIG11PIECE2 3/8IN INTERCHANGEABLE
Disk,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5895-01-542-0522B1111 INTERCHANGEABLE
Converter,signal Data
Lockheed Martin Corporation Div Rms - Manassas
Cross-Reference Index
Part NumberManufacturer
B111-1 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
B111-1 3/8IN SET 8PSI PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4930-00-528-9075INTERCHANGEABLE
LUBRICATOR,AIRLINE
3120-00-727-0676INTERCHANGEABLE
BEARING,SLEEVE
B11-11
4820-01-202-9799INTERCHANGEABLE
DISK,VALVE
B111-1FIG11PIECE2 3/8IN
5895-01-542-0522INTERCHANGEABLE
CONVERTER,SIGNAL DATA
B1111

Frequently Asked Questions

What is NSN 4820-01-202-9455?

NSN 4820-01-202-9455 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-202-9455?

NSN 4820-01-202-9455 has 2 cross-referenced part numbers: B111-1 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), B111-1 3/8IN SET 8PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-202-9455?

There are 4 known substitutes for 4820-01-202-9455: 4930-00-528-9075, 3120-00-727-0676, 4820-01-202-9799 and 1 more. Verify interchangeability with system specifications before substitution.

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