PartsTable TECHNICAL DATA SHEET

NSN 3040-01-598-1981Government record, cited

Collar, Shaft3040-01-598-1981

NSN 3040-01-598-1981 · NIIN 015981981

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

Government record, cited

Also searched as 3040-01-598-1981 · 3040015981981 · NIIN 015981981 · 01-598-1981 · FSC 3040 Miscellaneous Power Transmission Equipment

Nearby stock numbers ← 3040-01-598-1272 Cylinder Assembly, Actuating, Linear · 3040-01-598-1982 Collar, Shaft →

Features

Collar,shaft — FSC 3040
Securing Hole Type and Location: UNTHREADED ALL HOLES
Largest Diameter Length: 0.320 INCHES NOMINAL IN
Style Designator: ROUND STEPPED
Outside Diameter: 8.260 INCHES NOMINAL IN
Hole Diameter and Location: 0.2500 INCHES MINIMUM ALL HOLES AND 0.2516 INCHES MAXIMUM ALL HOLES IN
Small End Diameter: 6.380 INCHES NOMINAL IN
Securing Hole Quantity: 16

Identification

NSN: 3040-01-598-1981
NIIN: 015981981
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-598-1981, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	3040-01-598-1981
Item Name	Collar,shaft
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Securing Hole Type and Location	UNTHREADED ALL HOLES
Largest Diameter Length	0.320 INCHES NOMINAL IN
Style Designator	ROUND STEPPED
Outside Diameter	8.260 INCHES NOMINAL IN
Hole Diameter and Location	0.2500 INCHES MINIMUM ALL HOLES AND 0.2516 INCHES MAXIMUM ALL HOLES IN
Small End Diameter	6.380 INCHES NOMINAL IN
Securing Hole Quantity	16
Material	ALUMINUM ALLOY
Thickness	2.330 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
353970-1	3/2 Design control — primary reference U.S. Government activity

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 3040-01-598-1981?

NSN 3040-01-598-1981 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What are the specifications of 3040-01-598-1981?

Key specifications for 3040-01-598-1981: Securing Hole Type and Location: UNTHREADED ALL HOLES; Largest Diameter Length: 0.320 INCHES NOMINAL IN; Style Designator: ROUND STEPPED; Outside Diameter: 8.260 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-598-1981 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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