Seal Assembly, Shaft4140-01-177-9289

NSN 4140-01-177-9289 · NIIN 011779289 · Part number BB1-3441-1

Fm Af, Llc Dba American Fan Company · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 75477

Government record, cited

NSN 4140-01-177-9289 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-177-9289. Manufacturer of record part number: BB1-3441-1.

Also searched as 4140-01-177-9289 · 4140011779289 · NIIN 011779289 · 01-177-9289 · FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 75477 · BB1-3441-1 · B1-3441

Nearby stock numbers ← 4140-01-177-8496 · 4140-01-177-9291 Impeller, Fan, Axial →

Features

Seal Assembly,shaft — FSC 4140
1 manufacturer part number on file
Manufacturer of record: Fm Af, Llc Dba American Fan Company

Identification

NSN: 4140-01-177-9289
NIIN: 011779289
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: BB1-3441-1
Manufacturer: Fm Af, Llc Dba American Fan Company

General Description

The Seal Assembly,shaft, cataloged under National Stock Number 4140-01-177-9289, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Fm Af, Llc Dba American Fan Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4140-01-177-9289
Primary Part Number	BB1-3441-1
Item Name	Seal Assembly,shaft
FSC / FSG	4140 / 41 — Fans, Air Circulators, and Blower Equipment
Manufacturer	Fm Af, Llc Dba American Fan Company
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
BB1-3441-1 PRIMARY	Fm Af, Llc Dba American Fan Company (USA)

Reference documents

Reference	Meaning
B1-3441	5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans

Frequently Asked Questions

What is NSN 4140-01-177-9289?

NSN 4140-01-177-9289 is a Seal Assembly,shaft, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What part numbers are listed for NSN 4140-01-177-9289?

NSN 4140-01-177-9289 has 1 manufacturer part number on file: BB1-3441-1 (Fm Af, Llc Dba American Fan Company).

What are the specifications of BB1-3441-1?

Key specifications for BB1-3441-1: End Item Identification: NSN 4140-01-172-2331. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4140-01-177-9289 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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