Hub, Body3040-01-187-9979

NSN 3040-01-187-9979 · NIIN 011879979

FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment

Government record, cited

Also searched as 3040-01-187-9979 · 3040011879979 · NIIN 011879979 · 01-187-9979 · FSC 3040 Miscellaneous Power Transmission Equipment

Nearby stock numbers ← 3040-01-187-9978 Gearshaft, Multiple Gears · 3040-01-187-9984 Cylinder Assembly, Actuating, Line →

Features

Hub,body — FSC 3040
Second End Hub Outside Diameter: 0.250 INCHES NOMINAL IN
Shoulder Width: 0.475 INCHES NOMINAL IN
Hub Inside Diameter: 0.251 INCHES NOMINAL IN
Style Designator: DOUBLE HUB W/ SECRING HOLE(S)
Material Document and Classification: COMP 303 FED SPEC SINGLE MATERIAL RESPONSE
Distance From First End Hub to Shoulder: 0.330 INCHES NOMINAL IN
Material: STEEL

Identification

NSN: 3040-01-187-9979
NIIN: 011879979
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Hub,body, cataloged under National Stock Number 3040-01-187-9979, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-01-187-9979
Item Name	Hub,body
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Second End Hub Outside Diameter	0.250 INCHES NOMINAL IN
Shoulder Width	0.475 INCHES NOMINAL IN
Hub Inside Diameter	0.251 INCHES NOMINAL IN
Style Designator	DOUBLE HUB W/ SECRING HOLE(S)
Material Document and Classification	COMP 303 FED SPEC SINGLE MATERIAL RESPONSE
Distance From First End Hub to Shoulder	0.330 INCHES NOMINAL IN
Material	STEEL
Distance From Second End Hub to Shoulder	0.175 INCHES NOMINAL IN
Shoulder Outside Diameter	0.687 INCHES NOMINAL IN
First End Hub Outside Diameter	0.499 INCHES NOMINAL 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

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

Reference documents

Reference	Meaning
A700791	3/9 Design control — primary reference Nicolet Computer Graphics Div

No interchangeability data on file.

Other items in FSC 3040 — Miscellaneous Power Transmission Equipment

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

3040-00-001-0046

3040-00-001-0046 · Item name not on file

3040-00-001-0047

3040-00-001-0047 · Item name not on file

3040-00-001-0048

3040-00-001-0048 · Item name not on file

3040-00-001-0068

3040-00-001-0068 · Item name not on file

3040-00-001-0077

3040-00-001-0077 · Item name not on file

3040-00-001-0078

3040-00-001-0078 · Item name not on file

3040-00-001-0089

3040-00-001-0089 · Item name not on file

3040-00-001-1224

3040-00-001-1224 · Item name not on file

Frequently Asked Questions

What is NSN 3040-01-187-9979?

NSN 3040-01-187-9979 is a Hub,body, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What are the specifications of 3040-01-187-9979?

Key specifications for 3040-01-187-9979: Second End Hub Outside Diameter: 0.250 INCHES NOMINAL IN; Shoulder Width: 0.475 INCHES NOMINAL IN; Hub Inside Diameter: 0.251 INCHES NOMINAL IN; Style Designator: DOUBLE HUB W/ SECRING HOLE(S). 10 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-187-9979 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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