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20000668-1 — HEAD,SAFETY,PRESSURE RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20000668-1: HEAD,SAFETY,PRESSURE RELIEF.

The HEAD,SAFETY,PRESSURE RELIEF is a the manufacturer industrial component. Key specifications include head_type: BOLTED, head_material: STEEL CORROSION RESISTING, burst_pressure: 1.5 PRESSURE POUNDS PER SQUARE INCH GAGE, part_name_assigned_by_controlling_agency: VENT, EXPLOSION. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-702-9212, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
20000668-1
NSN: 4820-01-702-9212
FSC: 4820 — Valves, Nonpowered
CAGE: 32874 — BS&B SAFETY SYSTEMS LLC (USA)
SPECIFICATIONS
head_typeBOLTED
head_materialSTEEL CORROSION RESISTING
burst_pressure1.5 PRESSURE POUNDS PER SQUARE INCH GAGE
part_name_assigned_by_controlling_agencyVENT, EXPLOSION
NSN4820-01-702-9212
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20000668-1 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BURST PRESSURE: 1.5 PRESSURE POUNDS PER SQUARE INCH GAGE
•
HEAD TYPE: BOLTED
•
HEAD MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
BURST PRESSURE1.5 PRESSURE POUNDS PER SQUARE INCH GAGE
HEAD TYPEBOLTED
HEAD MATERIALSTEEL CORROSION RESISTING
PART NAME ASSIGNED BY CONTROLLING AGENCYVENT, EXPLOSION
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 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20000668-1?
20000668-1 is a HEAD,SAFETY,PRESSURE RELIEF.
What is the NSN for 20000668-1?
20000668-1 is cataloged in the U.S. Government catalog under NSN 4820-01-702-9212. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.