PartsTable TECHNICAL DATA SHEET

NSN 1005-01-731-2931Government record, cited

Optic Riser Assembly1005-01-731-2931

NSN 1005-01-731-2931 · NIIN 017312931 · Part number YHM-225

Yankee Hill Machine Co., Inc. · FSC 1005 — Guns, Through 30mm · FSG 10 — Weapons · CAGE 3D540

Government record, cited

NSN 1005-01-731-2931 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-731-2931. Manufacturer of record part number: YHM-225.

Also searched as 1005-01-731-2931 · 1005017312931 · NIIN 017312931 · 01-731-2931 · FSC 1005 Guns, Through 30mm · CAGE 3D540 · YHM-225

Nearby stock numbers ← 1005-01-731-2905 Recoil Clamp · 1005-01-731-3920 Pawl, Ammunition Feed →

Features

Optic Riser Assembly — FSC 1005
1 manufacturer part number on file
Manufacturer of record: Yankee Hill Machine Co., Inc.

Identification

NSN: 1005-01-731-2931
NIIN: 017312931
FSC: 1005 — Guns, Through 30mm
FSG: 10 — Weapons
Primary part number: YHM-225
Manufacturer: Yankee Hill Machine Co., Inc.

General Description

The Optic Riser Assembly, cataloged under National Stock Number 1005-01-731-2931, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Yankee Hill Machine Co., Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Optic Riser Assembly
FSC / FSG	1005 — Guns, Through 30mm (FSG 10)
Manufacturers	Yankee Hill Machine Co., Inc. (CAGE 3D540)

Technical Specifications

Parameter	Value
NSN	1005-01-731-2931
Primary Part Number	YHM-225
Item Name	Optic Riser Assembly
FSC / FSG	1005 / 10 — Guns, Through 30mm
Manufacturer	Yankee Hill Machine Co., Inc.
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
YHM-225 PRIMARY	Yankee Hill Machine Co., Inc. (USA)

No interchangeability data on file.

Other items in FSC 1005 — Guns, Through 30mm

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

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1005-00-001-5589 · Item name not on file

1005-00-002-0996

1005-00-002-0996 · Item name not on file

1005-00-003-1073

STOP,CARTRIDGE

1005-00-003-2251

1005-00-003-2251 · Item name not on file

1005-00-003-2267

1005-00-003-2267 · Item name not on file

1005-00-003-2268

1005-00-003-2268 · Item name not on file

Frequently Asked Questions

What is NSN 1005-01-731-2931?

NSN 1005-01-731-2931 is a Optic Riser Assembly, manufactured by Yankee Hill Machine Co., Inc., classified under FSC 1005, Guns, Through 30mm. Status: active.

What part numbers are listed for NSN 1005-01-731-2931?

NSN 1005-01-731-2931 has 1 manufacturer part number on file: YHM-225 (Yankee Hill Machine Co., Inc.).

Is NSN 1005-01-731-2931 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.

What is the DEMIL code for NSN 1005-01-731-2931?

NSN 1005-01-731-2931 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.

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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