PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BRG12017Valve,safety Relief

Bae Systems Land & Armaments L.p. · NSN 4820-00-936-4274 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-936-4274 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-936-4274. Primary manufacturer part number: BRG12017.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Flow Control Device: NEEDLE
  • Material: STEEL OVERALL
  • Thread Series Designator: NPT FIRST END
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Nominal Thread Size: 0.125 INCHES FIRST END IN
  • Thread Direction: RIGHT-HAND FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-936-4274, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-936-4274
Primary Part NumberBRG12017
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBae Systems Land & Armaments L.p.
StatusACTIVE
Style DesignatorSTRAIGHT THRU
Flow Control DeviceNEEDLE
MaterialSTEEL OVERALL
Thread Series DesignatorNPT FIRST END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Nominal Thread Size0.125 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Valve Operation MethodAUTOMATIC
Connection StylePLAIN (PIPE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1660-00-078-822710C-0005-11 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
3110-00-100-61820283 INTERCHANGEABLE
Ball,bearing
Harley Davidson Motor Co Inc
5340-00-163-5527E5-45-656 INTERCHANGEABLE
Cup,compression
Edgewood Chemical Biological Center Ecbc
5945-00-233-1389SCB42402 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6685-00-239-4007 INTERCHANGEABLE
Thermometer,self-Indicating
1075-00-293-6577 INTERCHANGEABLE
Stop,wedge,mine Sweeping
5330-01-096-349921278 INTERCHANGEABLE
Seal,plain Encased
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5331-01-178-1752 INTERCHANGEABLE
O-Ring
4730-01-301-368721278 INTERCHANGEABLE
Repair Kit,pipe,emergency Damage
Indumar Products Inc
1005-01-503-002221278 INTERCHANGEABLE
Bore,rod
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
BRG12017 Bae Systems Land & Armaments L.p. (USA)
BRG12017 Amz Alabama Inc. (USA)
21278 Bosch Automotive Service Solutions Inc. (USA)
Related Parts
1660-00-078-8227INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0005-11
3110-00-100-6182INTERCHANGEABLE
BALL,BEARING
0283
5340-00-163-5527INTERCHANGEABLE
CUP,COMPRESSION
E5-45-656
5945-00-233-1389INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SCB42402
6685-00-239-4007INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
1075-00-293-6577INTERCHANGEABLE
STOP,WEDGE,MINE SWEEPING
5330-01-096-3499INTERCHANGEABLE
SEAL,PLAIN ENCASED
21278
5331-01-178-1752INTERCHANGEABLE
O-RING
4730-01-301-3687INTERCHANGEABLE
REPAIR KIT,PIPE,EMERGENCY DAMAGE
21278
1005-01-503-0022INTERCHANGEABLE
BORE,ROD
21278
5306-01-725-1289INTERCHANGEABLE
BOLT,MACHINE
21278

Frequently Asked Questions

What is NSN 4820-00-936-4274?

NSN 4820-00-936-4274 is a Valve,safety Relief, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-936-4274?

NSN 4820-00-936-4274 has 3 cross-referenced part numbers: BRG12017 (Bae Systems Land & Armaments L.p.), BRG12017 (Amz Alabama Inc.), 21278 (Bosch Automotive Service Solutions Inc.).

What NSN replaces 4820-00-936-4274?

There are 11 known substitutes for 4820-00-936-4274: 1660-00-078-8227, 3110-00-100-6182, 5340-00-163-5527 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BRG12017?

Key specifications for BRG12017: Style Designator: STRAIGHT THRU; Flow Control Device: NEEDLE; Material: STEEL OVERALL; Thread Series Designator: NPT FIRST END. 9 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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