PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12157Valve,safety Relief

Saf Industries Llc Dba Saf Industries Llc Div Garkenyon · NSN 4820-00-601-5888 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-601-5888 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-601-5888. Primary manufacturer part number: 12157.
Features
  • Valve,safety Relief — FSC 4820
  • Disk Loading Method: SPRING
  • Connection Style: PLAIN (TUBE) FIRST END
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Flow Control Device: DISK
  • Thread Series Designator: UNF FIRST END
  • Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Valve Operation Method: HYDRAULIC
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-601-5888, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-601-5888
Primary Part Number12157
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSaf Industries Llc Dba Saf Industries Llc Div Garkenyon
StatusCANCELLED
Disk Loading MethodSPRING
Connection StylePLAIN (TUBE) FIRST END
Nominal Thread Size0.750 INCHES FIRST END IN
Flow Control DeviceDISK
Thread Series DesignatorUNF FIRST END
Maximum Operating Temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
Valve Operation MethodHYDRAULIC
Thread Quantity Per Inch16 FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Media for Which DesignedHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
MaterialALUMINUM ALLOY SEAT
Style DesignatorSTRAIGHT THRU
Thread DirectionRIGHT-HAND FIRST END
MaterialALUMINUM ALLOY BODY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3442-00-522-2727 INTERCHANGEABLE
Press,hydraulic Flexible
3439-00-630-2017R12167 INTERCHANGEABLE
Soldering Pencil,electric
Triton Industries Inc
5935-01-015-82904064-0001 INTERCHANGEABLE
Connector,receptacle,electrical
Sv Microwave, Inc. Div Sv Microwave
3040-01-101-6213 INTERCHANGEABLE
Shaft,shouldered
5940-01-255-882412157 INTERCHANGEABLE
Terminal,quick Disconnect
Auto Vehicle Parts Co Dba Au-Ve-Co
5998-01-475-4703927430-0017 INTERCHANGEABLE
Circuit Card Assembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5330-01-609-158612157 INTERCHANGEABLE
Gasket
Hdt Expeditionary Systems Inc
1005-01-666-477912157 INTERCHANGEABLE
Adapter Rail,weapon Mounted
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
216-8D Spartan Hydraulics Inc
12157 PRIMARY Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA)
Related Parts
3442-00-522-2727INTERCHANGEABLE
PRESS,HYDRAULIC FLEXIBLE
3439-00-630-2017INTERCHANGEABLE
SOLDERING PENCIL,ELECTRIC
R12167
5935-01-015-8290INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4064-0001
3040-01-101-6213INTERCHANGEABLE
SHAFT,SHOULDERED
5940-01-255-8824INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
12157
5998-01-475-4703INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
927430-0017
5330-01-609-1586INTERCHANGEABLE
GASKET
12157
1005-01-666-4779INTERCHANGEABLE
ADAPTER RAIL,WEAPON MOUNTED
12157

Frequently Asked Questions

What is NSN 4820-00-601-5888?

NSN 4820-00-601-5888 is a Valve,safety Relief, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-601-5888?

NSN 4820-00-601-5888 has 2 cross-referenced part numbers: 216-8D (Spartan Hydraulics Inc), 12157 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).

What NSN replaces 4820-00-601-5888?

There are 8 known substitutes for 4820-00-601-5888: 3442-00-522-2727, 3439-00-630-2017, 5935-01-015-8290 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12157?

Key specifications for 12157: Disk Loading Method: SPRING; Connection Style: PLAIN (TUBE) FIRST END; Nominal Thread Size: 0.750 INCHES FIRST END IN; Flow Control Device: DISK. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-601-5888 still in active supply?

NSN 4820-00-601-5888 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com