NSN 3040-00-291-2082 · NIIN 002912082 · Part number 311251
Lockheed Martin Corporation Div Rms - Mitchel Field · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 56232
Government record, cited
NSN 3040-00-291-2082 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-291-2082. Manufacturer of record part number: 311251.
Also searched as3040-00-291-2082 ·
3040002912082 ·
NIIN 002912082 ·
00-291-2082 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 56232 · 311251
Nearby stock numbers← 3040-00-291-1997 Bell Crank
·
3040-00-291-2459 Bell Crank →
Features
Shaft,piston and Cylinder Block — FSC 3040
General Characteristics Item Description: STEEL QQ-S-764,TYPE 303,COND A
2 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Div Rms - Mitchel Field
Identification
NSN: 3040-00-291-2082
NIIN: 002912082
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 311251
Manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
General Description
The Shaft,piston and Cylinder Block, cataloged under National Stock Number 3040-00-291-2082, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3040-00-291-2082
Primary Part Number
311251
Item Name
Shaft,piston and Cylinder Block
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Lockheed Martin Corporation Div Rms - Mitchel Field
Status
ACTIVE
General Characteristics Item Description
STEEL QQ-S-764,TYPE 303,COND A
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
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-00-394-7253SCB77598POSSIBLE MATCH
NUT,PLAIN,KNURLED
Possible match (shared part number)Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-554-7061311251POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5360-00-876-5517311251POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5365-01-091-110131125-1POSSIBLE MATCH
SHIM
Possible match (shared part number)The Dewey Electronics Corporation Div Pitometer Log Division
6150-01-710-312331125-1POSSIBLE MATCH
CABLE AND CONDUIT ASSEMBLY,ELECT
Possible match (shared part number)Flexco Microwave Inc
NSN 3040-00-291-2082 is a Shaft,piston and Cylinder Block, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-00-291-2082?
NSN 3040-00-291-2082 has 2 manufacturer part numbers on file: 311251 (Lockheed Martin Corporation Div Rms - Mitchel Field), 311251 (Eaton Aerospace, Llc Dba Jackson South).
What NSN replaces 3040-00-291-2082?
5 possible matches (shared part number, not a government interchangeability claim): 5310-00-394-7253, 4730-00-554-7061, 5360-00-876-5517. Verify interchangeability with system specifications before substitution.
What are the specifications of 311251?
Key specifications for 311251: General Characteristics Item Description: STEEL QQ-S-764,TYPE 303,COND A. 1 specification is documented in the U.S. Government catalog.
Is NSN 3040-00-291-2082 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.