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NSN 4820-01-294-1742Government record, cited

Valve, Safety Relief4820-01-294-1742

NSN 4820-01-294-1742 · NIIN 012941742 · Part number SS-4R3A5-D
Dibert Valve & Fitting Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 7N351
Government record, cited
NSN 4820-01-294-1742 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-294-1742. Manufacturer of record part number: SS-4R3A5-D.
Also searched as  4820-01-294-1742 · 4820012941742 · NIIN 012941742 · 01-294-1742 · FSC 4820 Valves, Nonpowered · CAGE 7N351 · SS-4R3A5-D
Nearby stock numbers  ·
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: DISK
  • Adjustable Pressure Range: +1500.0 TO 2250.0 POUNDS PER SQUARE INCH LBS
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
  • Material: STEEL CORROSION RESISTING SEAT
  • Material: STEEL CORROSION RESISTING BODY
  • Valve Operation Method: AUTOMATIC
  • 2 manufacturer part numbers on file
Identification
  • NSN: 4820-01-294-1742
  • NIIN: 012941742
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: SS-4R3A5-D
  • Manufacturer: Dibert Valve & Fitting Co Inc
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-294-1742, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dibert Valve & Fitting Co Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-294-1742
Primary Part NumberSS-4R3A5-D
Item NameValve,safety Relief
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerDibert Valve & Fitting Co Inc
StatusACTIVE
Flow Control DeviceDISK
Adjustable Pressure Range+1500.0 TO 2250.0 POUNDS PER SQUARE INCH LBS
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MaterialSTEEL CORROSION RESISTING SEAT
MaterialSTEEL CORROSION RESISTING BODY
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
SS-4R3A5-D PRIMARY Dibert Valve & Fitting Co Inc (USA)
SS-4R3A5-D Swagelok Co (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-294-1742?

NSN 4820-01-294-1742 is a Valve,safety Relief, manufactured by Dibert Valve & Fitting Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-294-1742?

NSN 4820-01-294-1742 has 2 manufacturer part numbers on file: SS-4R3A5-D (Dibert Valve & Fitting Co Inc), SS-4R3A5-D (Swagelok Co).

What are the specifications of SS-4R3A5-D?

Key specifications for SS-4R3A5-D: Flow Control Device: DISK; Adjustable Pressure Range: +1500.0 TO 2250.0 POUNDS PER SQUARE INCH LBS; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Material: STEEL CORROSION RESISTING SEAT. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-294-1742 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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