PartsTable TECHNICAL DATA SHEET

NSN 4820-01-178-4892Government record, cited

Cap, Valve4820-01-178-4892

NSN 4820-01-178-4892 · NIIN 011784892 · Part number ADH8203A

Fairbanks Morse, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 7PZX0

Government record, cited

NSN 4820-01-178-4892 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-178-4892. Manufacturer of record part number: ADH8203A.

Also searched as 4820-01-178-4892 · 4820011784892 · NIIN 011784892 · 01-178-4892 · FSC 4820 Valves, Nonpowered · CAGE 7PZX0 · ADH8203A

Nearby stock numbers ← 4820-01-178-4891 · 4820-01-178-4900 →

4820-01-178-4892 — Valves, Nonpowered

Features

Cap,valve — FSC 4820
Height: 1.125 INCHES NOMINAL IN
Material: COPPER ALLOY
Attachment Method: THREADED
1 manufacturer part number on file
Manufacturer of record: Fairbanks Morse, Llc

Identification

NSN: 4820-01-178-4892
NIIN: 011784892
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: ADH8203A
Manufacturer: Fairbanks Morse, Llc

General Description

The Cap,valve, cataloged under National Stock Number 4820-01-178-4892, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-178-4892
Primary Part Number	ADH8203A
Item Name	Cap,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Fairbanks Morse, Llc
Status	ACTIVE
Height	1.125 INCHES NOMINAL IN
Material	COPPER ALLOY
Attachment Method	THREADED

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
ADH8203A PRIMARY	Fairbanks Morse, Llc (USA)

Reference documents

Reference	Meaning
ADH8203A	3/9 Design control — primary 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 4820-01-178-4892?

NSN 4820-01-178-4892 is a Cap,valve, manufactured by Fairbanks Morse, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-178-4892?

NSN 4820-01-178-4892 has 1 manufacturer part number on file: ADH8203A (Fairbanks Morse, Llc).

What are the specifications of ADH8203A?

Key specifications for ADH8203A: Height: 1.125 INCHES NOMINAL IN; Material: COPPER ALLOY; Attachment Method: THREADED. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-178-4892 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.

PartsTable Design LLC · partstable.com