Tailpiece, Union4730-01-337-7635

NSN 4730-01-337-7635 · NIIN 013377635

FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings

Government record, cited

Also searched as 4730-01-337-7635 · 4730013377635 · NIIN 013377635 · 01-337-7635 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 4775990 PC 72 · 2621-791-05 PIECE 72 · 4775990

Nearby stock numbers ← 4730-01-337-7634 Tailpiece, Union · 4730-01-337-7636 Nut Assembly, Tube Coupling →

4730-01-337-7635 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Tailpiece,union — FSC 4730
Union Outside Diameter: 1.062 INCHES NOMINAL IN
Nominal Pipe Size Designation: 0.500 INCHES IN
End Connection Type: BRAZED
Seat Type: GASKET
Material: COPPER ALLOY 903

Identification

NSN: 4730-01-337-7635
NIIN: 013377635
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings

General Description

The Tailpiece,union, cataloged under National Stock Number 4730-01-337-7635, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4730-01-337-7635
Item Name	Tailpiece,union
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Status	ACTIVE
Union Outside Diameter	1.062 INCHES NOMINAL IN
Nominal Pipe Size Designation	0.500 INCHES IN
End Connection Type	BRAZED
Seat Type	GASKET
Material	COPPER ALLOY 903

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
4775990 PC 72	3/2 Design control — primary reference U.S. Government activity
2621-791-05 PIECE 72	3/2 Design control — primary reference U.S. Government activity
4775990	D/9 Drawing number reference only U.S. Government activity

Frequently Asked Questions

What is NSN 4730-01-337-7635?

NSN 4730-01-337-7635 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What are the specifications of 4730-01-337-7635?

Key specifications for 4730-01-337-7635: Union Outside Diameter: 1.062 INCHES NOMINAL IN; Nominal Pipe Size Designation: 0.500 INCHES IN; End Connection Type: BRAZED; Overall Length: 1.062 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-337-7635 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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