Valve, Ball4820-01-667-4053

NSN 4820-01-667-4053 · NIIN 016674053 · Part number BA01A 1/2

Defense Maritime Solutions, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0EYA6

Government record, cited

NSN 4820-01-667-4053 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-667-4053. Manufacturer of record part number: BA01A 1/2.

Also searched as 4820-01-667-4053 · 4820016674053 · NIIN 016674053 · 01-667-4053 · FSC 4820 Valves, Nonpowered · CAGE 0EYA6 · BA01A 1/2 · TABLE 7-61 PG 7-147 BA01 1/2

Nearby stock numbers ← 4820-01-667-4049 Retainer, Seat, Valve · 4820-01-667-4262 Disk, Valve →

4820-01-667-4053 — Valves, Nonpowered

Features

Valve,ball — FSC 4820
Style Designator: STRAIGHT THRU FLANGED ENDS
Valve Size: 0.500 INCHES IN
Material: NICKEL AND ALUMINUM AND BRONZE BODY
Material: NICKEL AND ALUMINUM AND BRONZE SEAT
Material: NICKEL AND ALUMINUM AND BRONZE STEM
Valve Operation Method: MANUAL
2 manufacturer part numbers on file

Identification

NSN: 4820-01-667-4053
NIIN: 016674053
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BA01A 1/2
Manufacturer: Defense Maritime Solutions, Inc.

General Description

The Valve,ball, cataloged under National Stock Number 4820-01-667-4053, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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	4820-01-667-4053
Primary Part Number	BA01A 1/2
Item Name	Valve,ball
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Defense Maritime Solutions, Inc.
Status	ACTIVE
Style Designator	STRAIGHT THRU FLANGED ENDS
Valve Size	0.500 INCHES IN
Material	NICKEL AND ALUMINUM AND BRONZE BODY
Material	NICKEL AND ALUMINUM AND BRONZE SEAT
Material	NICKEL AND ALUMINUM AND BRONZE STEM
Valve Operation Method	MANUAL

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
TABLE 7-61 PG 7-147 BA01 1/2	Pyrogenesis Inc. (CAN)
BA01A 1/2 PRIMARY	Defense Maritime Solutions, 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 4820-01-667-4053?

NSN 4820-01-667-4053 is a Valve,ball, manufactured by Defense Maritime Solutions, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-667-4053?

NSN 4820-01-667-4053 has 2 manufacturer part numbers on file: TABLE 7-61 PG 7-147 BA01 1/2 (Pyrogenesis Inc.), BA01A 1/2 (Defense Maritime Solutions, Inc.).

What are the specifications of BA01A 1/2?

Key specifications for BA01A 1/2: Style Designator: STRAIGHT THRU FLANGED ENDS; Valve Size: 0.500 INCHES IN; Part Name Assigned by Controlling Agency: REDUCED BORE BALL VALVE; Material: NICKEL AND ALUMINUM AND BRONZE BODY. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-667-4053 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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