PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2129019Valve,safety Relief

Chrysler Corp Service and Parts Opns · NSN 4820-00-005-7601 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-005-7601 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-005-7601. Primary manufacturer part number: 2129019.
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: BALL
  • Valve Operation Method: AUTOMATIC
  • Thread Direction: RIGHT-HAND FIRST END
  • Material: STEEL OVERALL
  • Nominal Thread Size: 0.500 INCHES FIRST END IN
  • Style Designator: ANGLE
  • Thread Series Designator: UNF 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 4820-00-005-7601, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Chrysler Corp Service and Parts Opns. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-005-7601
Primary Part Number2129019
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerChrysler Corp Service and Parts Opns
StatusACTIVE
Flow Control DeviceBALL
Valve Operation MethodAUTOMATIC
Thread DirectionRIGHT-HAND FIRST END
MaterialSTEEL OVERALL
Nominal Thread Size0.500 INCHES FIRST END IN
Style DesignatorANGLE
Thread Series DesignatorUNF FIRST END
Thread Class2A FIRST END A
Bonnet Attachment MethodINTEGRAL
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
Disk Loading MethodSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-017-3934 INTERCHANGEABLE
Contact Positioner,terminal Crim
5360-00-291-427922111 INTERCHANGEABLE
Spring,helical,compression
Grove Valve Operations
5120-00-303-77392-2-111 INTERCHANGEABLE
Wrench,open End
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
5365-00-424-552222-111 INTERCHANGEABLE
Shim
Dresser Industries Inc Leroi Div
5999-00-481-561001-0102-0827 INTERCHANGEABLE
Wire Mesh,knitted
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
3020-00-544-556322111 INTERCHANGEABLE
Gear,roll Drive
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
6110-00-635-852122111-1 INTERCHANGEABLE
Starter,motor
Ward Leonard Ct Llc
5935-00-655-413910-130958-07S INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corp Div Amphenol Aerospace Operations
3120-00-661-966722111 INTERCHANGEABLE
Bearing,sleeve
Master Machine Products Corp
5945-01-124-1211ST5M1458-001 INTERCHANGEABLE
Retainer,electrical Relay
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
22111 Tld Wollard Llc (USA)
2129019 PRIMARY Chrysler Corp Service and Parts Opns (USA)
2129019 Atwood Fence Co Inc (USA)
Related Parts
5120-00-017-3934INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
5360-00-291-4279INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
22111
5120-00-303-7739INTERCHANGEABLE
WRENCH,OPEN END
2-2-111
5365-00-424-5522INTERCHANGEABLE
SHIM
22-111
5999-00-481-5610INTERCHANGEABLE
WIRE MESH,KNITTED
01-0102-0827
3020-00-544-5563INTERCHANGEABLE
GEAR,ROLL DRIVE
22111
6110-00-635-8521INTERCHANGEABLE
STARTER,MOTOR
22111-1
5935-00-655-4139INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
10-130958-07S
3120-00-661-9667INTERCHANGEABLE
BEARING,SLEEVE
22111
5945-01-124-1211INTERCHANGEABLE
RETAINER,ELECTRICAL RELAY
ST5M1458-001
7510-01-207-3960INTERCHANGEABLE
INK,STAMP PAD
22111
4730-01-222-5261INTERCHANGEABLE
ADAPTOR
2211-1

Frequently Asked Questions

What is NSN 4820-00-005-7601?

NSN 4820-00-005-7601 is a Valve,safety Relief, manufactured by Chrysler Corp Service and Parts Opns, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-005-7601?

NSN 4820-00-005-7601 has 3 cross-referenced part numbers: 22111 (Tld Wollard Llc), 2129019 (Chrysler Corp Service and Parts Opns), 2129019 (Atwood Fence Co Inc).

What NSN replaces 4820-00-005-7601?

There are 12 known substitutes for 4820-00-005-7601: 5120-00-017-3934, 5360-00-291-4279, 5120-00-303-7739 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2129019?

Key specifications for 2129019: Flow Control Device: BALL; Valve Operation Method: AUTOMATIC; Thread Direction: RIGHT-HAND FIRST END; Special Features: INLET FILTER INCLUDED. 12 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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