PartsTable TECHNICAL DATA SHEET

NSN 4820-01-289-5899Government record, cited

Burst Disc, Hydraulic Simulator4820-01-289-5899

NSN 4820-01-289-5899 · NIIN 012895899 · Part number 77-37-0066-85

Bs&b Safety Systems Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 32874

Government record, cited

NSN 4820-01-289-5899 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-289-5899. Manufacturer of record part number: 77-37-0066-85.

Also searched as 4820-01-289-5899 · 4820012895899 · NIIN 012895899 · 01-289-5899 · FSC 4820 Valves, Nonpowered · CAGE 32874 · 77-37-0066-85 · 8822-750540-5

Nearby stock numbers ← 4820-01-289-5898 Burst Disc, Hydraulic Simulator · 4820-01-289-6268 Valve →

4820-01-289-5899 — Valves, Nonpowered

Features

Burst Disc,hydraulic Simulator — FSC 4820
General Characteristics Item Description: RUPTURE PRESSURE 525-625 PSIG FORWARD; RUPTURE PRESSURE 1250 MAX PSIG REVERSE; 0.928 IN. MIN 0.935 IN. MAX OD; 0.115 IN. MIN 0.150 IN. MAX HIGH; 0.020 IN. MIN 0.030 IN. MAX CORNER RADIUS IN
1 manufacturer part number on file
Manufacturer of record: Bs&b Safety Systems Llc

Identification

NSN: 4820-01-289-5899
NIIN: 012895899
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 77-37-0066-85
Manufacturer: Bs&b Safety Systems Llc

General Description

The Burst Disc,hydraulic Simulator, cataloged under National Stock Number 4820-01-289-5899, 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 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-289-5899
Primary Part Number	77-37-0066-85
Item Name	Burst Disc,hydraulic Simulator
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Bs&b Safety Systems Llc
Status	ACTIVE
General Characteristics Item Description	RUPTURE PRESSURE 525-625 PSIG FORWARD; RUPTURE PRESSURE 1250 MAX PSIG REVERSE; 0.928 IN. MIN 0.935 IN. MAX OD; 0.115 IN. MIN 0.150 IN. MAX HIGH; 0.020 IN. MIN 0.030 IN. MAX CORNER RADIUS IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
77-37-0066-85 PRIMARY	Bs&b Safety Systems Llc (USA)

Reference documents

Reference	Meaning
8822-750540-5	5/9 Secondary reference U.S. Government activity

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 4820-01-289-5899?

NSN 4820-01-289-5899 is a Burst Disc,hydraulic Simulator, manufactured by Bs&b Safety Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-289-5899?

NSN 4820-01-289-5899 has 1 manufacturer part number on file: 77-37-0066-85 (Bs&b Safety Systems Llc).

What are the specifications of 77-37-0066-85?

Key specifications for 77-37-0066-85: General Characteristics Item Description: RUPTURE PRESSURE 525-625 PSIG FORWARD; RUPTURE PRESSURE 1250 MAX PSIG REVERSE; 0.928 IN. MIN 0.935 IN. MAX OD; 0.115 IN. MIN 0.150 IN. MAX HIGH; 0.020 IN. MIN 0.030 IN. MAX CORNER RADIUS IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-289-5899 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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