Breather2520-01-321-6307

NSN 2520-01-321-6307 · NIIN 013216307

FSC 2520 — Vehicular Power Transmission Components · FSG 25 — Vehicular Equipment Components

Government record, cited

Also searched as 2520-01-321-6307 · 2520013216307 · NIIN 013216307 · 01-321-6307 · FSC 2520 Vehicular Power Transmission Components · MD6-441B · MXLT-239 PIECE 8 · MXLT-239 PIECE 8 · MD6-441B

Nearby stock numbers ← 2520-01-321-5554 Adapter, Gear Box · 2520-01-321-7431 Slave Cylinder, Clutch →

Features

Breather — FSC 2520

Identification

NSN: 2520-01-321-6307
NIIN: 013216307
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components

General Description

The Breather, cataloged under National Stock Number 2520-01-321-6307, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Breather
FSC / FSG	2520 — Vehicular Power Transmission Components (FSG 25)

Technical Specifications

Parameter	Value
NSN	2520-01-321-6307
Item Name	Breather
FSC / FSG	2520 / 25 — Vehicular Power Transmission Components
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)

Cross-Reference Index

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

Reference documents

Reference	Meaning
MD6-441B	5/2 Secondary reference U.S. Government activity
MXLT-239 PIECE 8	5/2 Secondary reference U.S. Government activity
MXLT-239 PIECE 8	5/9 Secondary reference Jered Brown Bros Inc Liberty Works the
MD6-441B	3/9 Design control — primary reference Jered Brown Bros Inc Liberty Works the

No interchangeability data on file.

Other items in FSC 2520 — Vehicular Power Transmission Components

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

2520-00-005-4937

CLUTCH PACKAGE

2520-00-006-6257

2520-00-006-6257 · Item name not on file

2520-00-008-9977

SPIDER,UNIVERSAL JOINT,VEHICULAR

2520-00-039-6567

SOCKET

2520-00-242-3316

CLUTCH ASSEMBLY,HUB

2520-00-358-3905

COVER

2520-00-366-7191

COLLAR,SHAFT LINKAGE

2520-00-708-6603

COVER CONTROL LEVER

Frequently Asked Questions

What is NSN 2520-01-321-6307?

NSN 2520-01-321-6307 is a Breather, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.

Is NSN 2520-01-321-6307 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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