PartsTable TECHNICAL DATA SHEET

NSN 4310-01-258-4974Government record, cited

Breather4310-01-258-4974

NSN 4310-01-258-4974 · NIIN 012584974 · Part number 45630084

W B Arnold Company, Inc. · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 2H266

Government record, cited

NSN 4310-01-258-4974 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-258-4974. Manufacturer of record part number: 45630084.

Also searched as 4310-01-258-4974 · 4310012584974 · NIIN 012584974 · 01-258-4974 · FSC 4310 Compressors and Vacuum Pumps · CAGE 2H266 · 45630084

Nearby stock numbers ← 4310-01-258-4920 Compressor, Reciprocating · 4310-01-258-6385 Vacuum Pump, Rotary →

Features

Breather — FSC 4310
1 manufacturer part number on file
Manufacturer of record: W B Arnold Company, Inc.

Identification

NSN: 4310-01-258-4974
NIIN: 012584974
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 45630084
Manufacturer: W B Arnold Company, Inc.

General Description

The Breather, cataloged under National Stock Number 4310-01-258-4974, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is W B Arnold Company, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Breather
FSC / FSG	4310 — Compressors and Vacuum Pumps (FSG 43)
Manufacturers	W B Arnold Company, Inc. (CAGE 2H266)

Technical Specifications

Parameter	Value
NSN	4310-01-258-4974
Primary Part Number	45630084
Item Name	Breather
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Manufacturer	W B Arnold Company, 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)

Cross-Reference Index

Part Number	Manufacturer
45630084 PRIMARY	W B Arnold Company, Inc. (USA)

Reference documents

Reference	Meaning
45630084	5/9 Secondary reference Wartsila Water Systems Limited

No interchangeability data on file.

Other items in FSC 4310 — Compressors and Vacuum Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4310-00-000-0050

COMPRESSOR UNIT,RECIPROCATING

4310-00-001-0059

4310-00-001-0059 · Item name not on file

4310-00-001-2044

MOUNTING PAD,TANK,PRESSURE

4310-00-001-3477

PARTS KIT,VACUUM PUMP

4310-00-001-3493

VACUUM PUMP,ROTARY

4310-00-001-6194

4310-00-001-6194 · Item name not on file

4310-00-001-6381

4310-00-001-6381 · Item name not on file

4310-00-001-7755

PARTS KIT,VACUUM PUMP

Frequently Asked Questions

What is NSN 4310-01-258-4974?

NSN 4310-01-258-4974 is a Breather, manufactured by W B Arnold Company, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-01-258-4974?

NSN 4310-01-258-4974 has 1 manufacturer part number on file: 45630084 (W B Arnold Company, Inc.).

Is NSN 4310-01-258-4974 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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