Hose Assembly, Air Breathing4720-01-678-5311

NSN 4720-01-678-5311 · NIIN 016785311 · Part number 9100-50

Allegro Industries · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 7JHB9

Government record, cited

NSN 4720-01-678-5311 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-678-5311. Manufacturer of record part number: 9100-50.

Also searched as 4720-01-678-5311 · 4720016785311 · NIIN 016785311 · 01-678-5311 · FSC 4720 Hose and Flexible Tubing · CAGE 7JHB9 · 9100-50

Nearby stock numbers ← 4720-01-678-5302 Hose Assembly, Metallic · 4720-01-678-5444 Hose Assembly, Nonmetallic →

4720-01-678-5311 — Hose and Flexible Tubing

Features

Hose Assembly,air Breathing — FSC 4720
Temp Rating: -20.0 FAHRENHEIT DEGF
Outside Length: 600.0 INCHES NOMINAL BOTH ENDS IN
Connection Style: ROUND FIRST END
Connection Type: COUPLING FIRST END
Cross-Sectional Shape Style: ROUND
Outside Diameter: 0.594 INCHES NOMINAL BOTH ENDS IN
Operating Pressure: 185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS

Identification

NSN: 4720-01-678-5311
NIIN: 016785311
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 9100-50
Manufacturer: Allegro Industries

General Description

The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-678-5311, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Allegro Industries. Government technical data includes 8 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4720-01-678-5311
Primary Part Number	9100-50
Item Name	Hose Assembly,air Breathing
FSC / FSG	4720 / 47 — Hose and Flexible Tubing
Manufacturer	Allegro Industries
Status	ACTIVE
Temp Rating	-20.0 FAHRENHEIT DEGF
Outside Length	600.0 INCHES NOMINAL BOTH ENDS IN
Connection Style	ROUND FIRST END
Connection Type	COUPLING FIRST END
Cross-Sectional Shape Style	ROUND
Outside Diameter	0.594 INCHES NOMINAL BOTH ENDS IN
Operating Pressure	185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Inside Diameter	0.375 INCHES NOMINAL BOTH ENDS IN

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
9100-50 PRIMARY	Allegro Industries (USA)

Frequently Asked Questions

What is NSN 4720-01-678-5311?

NSN 4720-01-678-5311 is a Hose Assembly,air Breathing, manufactured by Allegro Industries, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What part numbers are listed for NSN 4720-01-678-5311?

NSN 4720-01-678-5311 has 1 manufacturer part number on file: 9100-50 (Allegro Industries).

What are the specifications of 9100-50?

Key specifications for 9100-50: Temp Rating: -20.0 FAHRENHEIT DEGF; Outside Length: 600.0 INCHES NOMINAL BOTH ENDS IN; Connection Style: ROUND FIRST END; Connection Type: COUPLING FIRST END. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-678-5311 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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