Plug, Vent5340-01-440-1433

NSN 5340-01-440-1433 · NIIN 014401433 · Part number DH40-28

Brooks T J Co · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 67089

Government record, cited

NSN 5340-01-440-1433 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-440-1433. Manufacturer of record part number: DH40-28.

Also searched as 5340-01-440-1433 · 5340014401433 · NIIN 014401433 · 01-440-1433 · FSC 5340 Hardware, Commercial · CAGE 67089 · DH40-28

Nearby stock numbers ← 5340-01-440-1432 Cover, Access · 5340-01-440-1434 Clamp, Loop →

Features

Plug,vent — FSC 5340
Length: 0.660 INCHES NOMINAL IN
End Connection Type: THREADED
Unthreaded End Diameter: 0.430 INCHES NOMINAL IN
Outside Diameter: 0.620 INCHES NOMINAL IN
Unthreaded End Length: 0.180 INCHES NOMINAL IN
Inside Diameter: 0.250 INCHES NOMINAL IN
Thread Class: 2A A

Identification

NSN: 5340-01-440-1433
NIIN: 014401433
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: DH40-28
Manufacturer: Brooks T J Co

General Description

The Plug,vent, cataloged under National Stock Number 5340-01-440-1433, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Brooks T J Co. Government technical data includes 9 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. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	5340-01-440-1433
Primary Part Number	DH40-28
Item Name	Plug,vent
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	Brooks T J Co
Status	ACTIVE
Length	0.660 INCHES NOMINAL IN
End Connection Type	THREADED
Unthreaded End Diameter	0.430 INCHES NOMINAL IN
Outside Diameter	0.620 INCHES NOMINAL IN
Unthreaded End Length	0.180 INCHES NOMINAL IN
Inside Diameter	0.250 INCHES NOMINAL IN
Thread Class	2A A
Material	PLASTIC POLYPROPYLENE
Thread Size and Series/type Designator	7/16-20 UNIFIED NATIONAL COARSE (UNC)

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X
Unit of Issue	EA

Cross-Reference Index

Part Number	Manufacturer
DH40-28 PRIMARY	Brooks T J Co (USA)

No interchangeability data on file.

Other items in FSC 5340 — Hardware, Commercial

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

5340-00-000-0068

COVER,ACCESS

5340-00-000-0132

SEAT,HELICAL COMPRESSION SPRING

5340-00-000-8150

5340-00-000-8150 · Item name not on file

5340-00-001-1251

5340-00-001-1251 · Item name not on file

5340-00-001-1264

STRAP,WEBBING

5340-00-001-1265

STRAP,WEBBING

5340-00-001-1266

STRAP,WEBBING

5340-00-001-1275

HANDLE,DOOR

Frequently Asked Questions

What is NSN 5340-01-440-1433?

NSN 5340-01-440-1433 is a Plug,vent, manufactured by Brooks T J Co, classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-01-440-1433?

NSN 5340-01-440-1433 has 1 manufacturer part number on file: DH40-28 (Brooks T J Co).

What are the specifications of DH40-28?

Key specifications for DH40-28: Length: 0.660 INCHES NOMINAL IN; End Connection Type: THREADED; Unthreaded End Diameter: 0.430 INCHES NOMINAL IN; Outside Diameter: 0.620 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-440-1433 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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