PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NP5029156Valve,safety Relief

Johnson C S Co Inc · NSN 4820-01-096-9393 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-096-9393 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-096-9393. Primary manufacturer part number: NP5029156.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Series Designator: NPT ALL ENDSNPT ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDSTHREADED EXTERNAL PIPE ALL ENDS
  • Style Designator: CROSSCROSS
  • Opening Pressure Setting: 150.0 POUNDS PER SQUARE INCH150.0 POUNDS PER SQUARE INCH LBS
  • Nominal Thread Size: 1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-096-9393, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Johnson C S Co Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN4820-01-096-9393
Primary Part NumberNP5029156
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerJohnson C S Co Inc
StatusACTIVE
Thread Series DesignatorNPT ALL ENDSNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
Connection TypeTHREADED EXTERNAL PIPE ALL ENDSTHREADED EXTERNAL PIPE ALL ENDS
Style DesignatorCROSSCROSS
Opening Pressure Setting150.0 POUNDS PER SQUARE INCH150.0 POUNDS PER SQUARE INCH LBS
Nominal Thread Size1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN
Valve Operation MethodAUTOMATICAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5910-00-144-4381 INTERCHANGEABLE
Capacitor,fixed,electrolytic
2920-00-782-1252A1-101 INTERCHANGEABLE
Generator,automativ
C E Niehoff & Co
3120-00-800-21171034733 INTERCHANGEABLE
Bearing,sleeve
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
6610-00-907-7831 INTERCHANGEABLE
Piston Assy,dashpot
5310-00-971-5238 INTERCHANGEABLE
Washer,key
4710-01-097-0326 INTERCHANGEABLE
Pipe,metallic
4730-01-097-7315 INTERCHANGEABLE
Adapter,straight,pipe to Hose
4820-01-110-1167NP5029016 INTERCHANGEABLE
Valve,angle
Cemen Tech, Inc.
8455-01-527-6591 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-534-6956 INTERCHANGEABLE
Insignia,organizational
Cross-Reference Index
Part NumberManufacturer
A110-1 Spraying Systems Co (USA)
NP5029156 Barber-Greene Co (USA)
AA110-1 Spraying Systems Co (USA)
NP3364094 Barber-Greene Co (USA)
NP5029156 PRIMARY Johnson C S Co Inc (USA)
NP5029156 Minnpar, Llc Dba Minnpar (USA)
NP3364094 Minnpar, Llc Dba Minnpar (USA)
Related Parts
5910-00-144-4381INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
2920-00-782-1252INTERCHANGEABLE
GENERATOR,AUTOMATIV
A1-101
3120-00-800-2117INTERCHANGEABLE
BEARING,SLEEVE
1034733
6610-00-907-7831INTERCHANGEABLE
PISTON ASSY,DASHPOT
5310-00-971-5238INTERCHANGEABLE
WASHER,KEY
4710-01-097-0326INTERCHANGEABLE
PIPE,METALLIC
4730-01-097-7315INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
4820-01-110-1167INTERCHANGEABLE
VALVE,ANGLE
NP5029016
8455-01-527-6591INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-534-6956INTERCHANGEABLE
INSIGNIA,ORGANIZATIONAL
8455-01-664-0674INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-714-3181INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 4820-01-096-9393?

NSN 4820-01-096-9393 is a Valve,safety Relief, manufactured by Johnson C S Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-096-9393?

NSN 4820-01-096-9393 has 7 cross-referenced part numbers: A110-1 (Spraying Systems Co), NP5029156 (Barber-Greene Co), AA110-1 (Spraying Systems Co), NP3364094 (Barber-Greene Co), NP5029156 (Johnson C S Co Inc) and 2 more.

What NSN replaces 4820-01-096-9393?

There are 12 known substitutes for 4820-01-096-9393: 5910-00-144-4381, 2920-00-782-1252, 3120-00-800-2117 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NP5029156?

Key specifications for NP5029156: Thread Series Designator: NPT ALL ENDSNPT ALL ENDS; Connection Style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDSTHREADED EXTERNAL PIPE ALL ENDS. 8 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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