PartsTable TECHNICAL DATA SHEET

NSN 4820-01-710-9817Government record, cited

Valve, Vacuum Regulating4820-01-710-9817

NSN 4820-01-710-9817 · NIIN 017109817 · Part number 77795

Williams International Co., L.l.c. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 24235

Government record, cited

NSN 4820-01-710-9817 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-710-9817. Manufacturer of record part number: 77795.

Also searched as 4820-01-710-9817 · 4820017109817 · NIIN 017109817 · 01-710-9817 · FSC 4820 Valves, Nonpowered · CAGE 24235 · 77795

Nearby stock numbers ← 4820-01-710-9750 Valve, Regulating, Fluid Pressure · 4820-01-710-9979 Valve, Regulating, Fluid Pressure →

4820-01-710-9817 — Valves, Nonpowered

Features

Valve,vacuum Regulating — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Williams International Co., L.l.c.

Identification

NSN: 4820-01-710-9817
NIIN: 017109817
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 77795
Manufacturer: Williams International Co., L.l.c.

General Description

The Valve,vacuum Regulating, cataloged under National Stock Number 4820-01-710-9817, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Williams International Co., L.l.c.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-710-9817
Primary Part Number	77795
Item Name	Valve,vacuum Regulating
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Williams International Co., L.l.c.
Status	ACTIVE

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
77795 PRIMARY	Williams International Co., L.l.c. (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 4820-01-710-9817?

NSN 4820-01-710-9817 is a Valve,vacuum Regulating, manufactured by Williams International Co., L.l.c., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-710-9817?

NSN 4820-01-710-9817 has 1 manufacturer part number on file: 77795 (Williams International Co., L.l.c.).

What are the specifications of 77795?

Key specifications for 77795: Part Name Assigned by Controlling Agency: VALVE ASSEMBLY, REGULATING PRESSURE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-710-9817 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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