Stem, Fluid Valve4820-01-644-3657

NSN 4820-01-644-3657 · NIIN 016443657 · Part number SS-QF8-S-8MT

Dibert Valve & Fitting Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 7N351

Government record, cited

NSN 4820-01-644-3657 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-644-3657. Manufacturer of record part number: SS-QF8-S-8MT.

Also searched as 4820-01-644-3657 · 4820016443657 · NIIN 016443657 · 01-644-3657 · FSC 4820 Valves, Nonpowered · CAGE 7N351 · SS-QF8-S-8MT

Nearby stock numbers ← 4820-01-644-3646 Disk, Valve · 4820-01-644-3841 Sight Gauge, Valve →

4820-01-644-3657 — Valves, Nonpowered

Features

Stem,fluid Valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Dibert Valve & Fitting Co Inc

Identification

NSN: 4820-01-644-3657
NIIN: 016443657
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SS-QF8-S-8MT
Manufacturer: Dibert Valve & Fitting Co Inc

General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-644-3657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dibert Valve & Fitting Co Inc. 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	4820-01-644-3657
Primary Part Number	SS-QF8-S-8MT
Item Name	Stem,fluid Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dibert Valve & Fitting Co Inc
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
SS-QF8-S-8MT PRIMARY	Dibert Valve & Fitting Co Inc (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 4820-01-644-3657?

NSN 4820-01-644-3657 is a Stem,fluid Valve, manufactured by Dibert Valve & Fitting Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-644-3657?

NSN 4820-01-644-3657 has 1 manufacturer part number on file: SS-QF8-S-8MT (Dibert Valve & Fitting Co Inc).

What are the specifications of SS-QF8-S-8MT?

Key specifications for SS-QF8-S-8MT: Special Features: SS FULL FLOW; End Item Identification: COMMUNICATION STATIONS; AK R21 NDS; REMOTE MISSION SYSTEMS PRODUCT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-644-3657 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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