PartsTable TECHNICAL DATA SHEET

NSN 4730-01-434-5386Government record, cited

Tailpiece, Union4730-01-434-5386

NSN 4730-01-434-5386 · NIIN 014345386

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

Government record, cited

Also searched as 4730-01-434-5386 · 4730014345386 · NIIN 014345386 · 01-434-5386 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · S2D10165 · S1E10033 · S2D10165-7NA

Nearby stock numbers ← 4730-01-434-5385 Sleeve, Hose Connector · 4730-01-434-5387 Tailpiece, Union →

4730-01-434-5386 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Tailpiece,union — FSC 4730

Identification

NSN: 4730-01-434-5386
NIIN: 014345386
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 4730-01-434-5386, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Tailpiece,union
FSC / FSG	4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47)

Technical Specifications

Parameter	Value
NSN	4730-01-434-5386
Item Name	Tailpiece,union
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
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

⇄ Related Items 4

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4730-01-434-5387S2D10202-6NA POSSIBLE MATCH

TAILPIECE,UNION

Possible match (shared part number)Vacco Industries

4730-01-435-0313S2D10173-3MA POSSIBLE MATCH

THREAD PIECE,UNION

Possible match (shared part number)Vacco Industries

4730-01-435-0314S2D10164-3DA POSSIBLE MATCH

THREAD PIECE,UNION

Possible match (shared part number)Vacco Industries

4730-01-435-0319 POSSIBLE MATCH

NUT,UNION

Possible match (shared part number)

Cross-Reference Index

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

Reference documents

Reference	Meaning
S2D10165	5/9 Secondary reference U.S. Government activity
S1E10033	D/9 Drawing number reference only U.S. Government activity
S2D10165-7NA	3/2 Design control — primary reference U.S. Government activity

Related Parts

4730-01-434-5387POSSIBLE MATCH

TAILPIECE,UNION

S2D10202-6NA

4730-01-435-0313POSSIBLE MATCH

THREAD PIECE,UNION

S2D10173-3MA

4730-01-435-0314POSSIBLE MATCH

THREAD PIECE,UNION

S2D10164-3DA

4730-01-435-0319POSSIBLE MATCH

NUT,UNION

Frequently Asked Questions

What is NSN 4730-01-434-5386?

NSN 4730-01-434-5386 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What NSN replaces 4730-01-434-5386?

4 possible matches (shared part number, not a government interchangeability claim): 4730-01-434-5387, 4730-01-435-0313, 4730-01-435-0314. Verify interchangeability with system specifications before substitution.

Is NSN 4730-01-434-5386 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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