PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12945Parts Kit,safety Relief Valve

Ashcroft Inc Dba Heise · NSN 4820-00-036-1928 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1928 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1928. Primary manufacturer part number: 12945.
Features
  • Parts Kit,safety Relief Valve — FSC 4820
  • Supply Items and Quantities: CAP HALF RH 1; CAP HALF LH 1
  • Component Quantity: 2
  • 2 verified cross-references
  • Primary manufacturer: Ashcroft Inc Dba Heise
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-00-036-1928, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 2 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1928
Primary Part Number12945
Item NameParts Kit,safety Relief Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Supply Items and QuantitiesCAP HALF RH 1; CAP HALF LH 1
Component Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3020-00-399-4569M-12700 INTERCHANGEABLE
Gear,spur
Itw Food Equipment Group Llc Dba Hobart Service
1650-00-513-512612945 INTERCHANGEABLE
Slide,directional Control Linear
Meggitt North Hollywood Inc
5360-00-620-979312945 INTERCHANGEABLE
Spring,press Ruduce
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6150-01-294-654712945 INTERCHANGEABLE
Bus,conductor
Scott and Fetzer Co the Wayne Home Equipment Div
6130-01-335-32001294-5 INTERCHANGEABLE
Power Supply
Astronics Test Systems Inc
5305-01-733-236312945 INTERCHANGEABLE
Screw,machine
Marco Seattle Inc Dba Marco
Cross-Reference Index
Part NumberManufacturer
12945 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
12945 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
3020-00-399-4569INTERCHANGEABLE
GEAR,SPUR
M-12700
1650-00-513-5126INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
12945
5360-00-620-9793INTERCHANGEABLE
SPRING,PRESS RUDUCE
12945
6150-01-294-6547INTERCHANGEABLE
BUS,CONDUCTOR
12945
6130-01-335-3200INTERCHANGEABLE
POWER SUPPLY
1294-5
5305-01-733-2363INTERCHANGEABLE
SCREW,MACHINE
12945

Frequently Asked Questions

What is NSN 4820-00-036-1928?

NSN 4820-00-036-1928 is a Parts Kit,safety Relief Valve, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-036-1928?

NSN 4820-00-036-1928 has 2 cross-referenced part numbers: 12945 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), 12945 (Ashcroft Inc Dba Heise).

What NSN replaces 4820-00-036-1928?

There are 6 known substitutes for 4820-00-036-1928: 3020-00-399-4569, 1650-00-513-5126, 5360-00-620-9793 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12945?

Key specifications for 12945: Supply Items and Quantities: CAP HALF RH 1; CAP HALF LH 1; Component Quantity: 2. 2 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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