PartsTable TECHNICAL DATA SHEET
NSN 4820-01-702-9212Government record, cited

Head, Safety, Pressure Relief4820-01-702-9212

NSN 4820-01-702-9212 · NIIN 017029212 · Part number VSP-2A5
Bs&b Safety Systems Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 32874
Government record, cited
NSN 4820-01-702-9212 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-702-9212. Manufacturer of record part number: VSP-2A5.
Also searched as  4820-01-702-9212 · 4820017029212 · NIIN 017029212 · 01-702-9212 · FSC 4820 Valves, Nonpowered · CAGE 32874 · VSP-2A5 · 20000668-1
Nearby stock numbers  ·
Features
  • Head,safety,pressure Relief — FSC 4820
  • Burst Pressure: 1.5 PRESSURE POUNDS PER SQUARE INCH GAGE
  • Head Type: BOLTED
  • Head Material: STEEL CORROSION RESISTING
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Bs&b Safety Systems Llc
Identification
  • NSN: 4820-01-702-9212
  • NIIN: 017029212
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: VSP-2A5
  • Manufacturer: Bs&b Safety Systems Llc
General Description

The Head,safety,pressure Relief, cataloged under National Stock Number 4820-01-702-9212, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bs&b Safety Systems Llc. Government technical data includes 3 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
NSN4820-01-702-9212
Primary Part NumberVSP-2A5
Item NameHead,safety,pressure Relief
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerBs&b Safety Systems Llc
StatusACTIVE
Burst Pressure1.5 PRESSURE POUNDS PER SQUARE INCH GAGE
Head TypeBOLTED
Head MaterialSTEEL CORROSION RESISTING
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
VSP-2A5 PRIMARY Bs&b Safety Systems Llc (USA)
20000668-1 Bs&b Safety Systems Llc (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 4820-01-702-9212?

NSN 4820-01-702-9212 is a Head,safety,pressure Relief, manufactured by Bs&b Safety Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-702-9212?

NSN 4820-01-702-9212 has 2 manufacturer part numbers on file: VSP-2A5 (Bs&b Safety Systems Llc), 20000668-1 (Bs&b Safety Systems Llc).

What are the specifications of VSP-2A5?

Key specifications for VSP-2A5: Burst Pressure: 1.5 PRESSURE POUNDS PER SQUARE INCH GAGE; Head Type: BOLTED; Head Material: STEEL CORROSION RESISTING; Part Name Assigned by Controlling Agency: VENT, EXPLOSION. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-702-9212 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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