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NSN 4820-01-604-6540Government record, cited

Valve, Sampling, Hydraulic4820-01-604-6540

NSN 4820-01-604-6540 · NIIN 016046540 · Part number 8785-G501 ITEM 3

Howell Laboratories Inc Dba Howell Laboratories Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 22501

Government record, cited

NSN 4820-01-604-6540 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-604-6540. Manufacturer of record part number: 8785-G501 ITEM 3.

Also searched as 4820-01-604-6540 · 4820016046540 · NIIN 016046540 · 01-604-6540 · FSC 4820 Valves, Nonpowered · CAGE 22501 · 8785-G501 ITEM 3 · S9551-CP-MMC-010,INDEX NO.7-1-2

Nearby stock numbers ← 4820-01-604-6447 Positioner Val · 4820-01-604-6608 Stem, Fluid Valve →

4820-01-604-6540 — Valves, Nonpowered

Features

Valve,sampling,hydraulic — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Howell Laboratories Inc Dba Howell Laboratories Inc

Identification

NSN: 4820-01-604-6540
NIIN: 016046540
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8785-G501 ITEM 3
Manufacturer: Howell Laboratories Inc Dba Howell Laboratories Inc

General Description

The Valve,sampling,hydraulic, cataloged under National Stock Number 4820-01-604-6540, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. 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

Parameter	Value
NSN	4820-01-604-6540
Primary Part Number	8785-G501 ITEM 3
Item Name	Valve,sampling,hydraulic
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Howell Laboratories Inc Dba Howell Laboratories 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
S9551-CP-MMC-010,INDEX NO.7-1-2	Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
8785-G501 ITEM 3 PRIMARY	Howell Laboratories Inc Dba Howell Laboratories 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 4820-01-604-6540?

NSN 4820-01-604-6540 is a Valve,sampling,hydraulic, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-604-6540?

NSN 4820-01-604-6540 has 2 manufacturer part numbers on file: S9551-CP-MMC-010,INDEX NO.7-1-2 (Howell Laboratories Inc Dba Howell Laboratories Inc), 8785-G501 ITEM 3 (Howell Laboratories Inc Dba Howell Laboratories Inc).

What are the specifications of 8785-G501 ITEM 3?

Key specifications for 8785-G501 ITEM 3: Special Features: ITEM IS PART OF 8785 MK I, AIR DEHYDRATOR, MED PRESSURE; Part Name Assigned by Controlling Agency: SAMPLE PORT ASSEMBLY; End Item Identification: HATCH, 30X48 INCH. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-604-6540 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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