NSN 3040-01-487-4137 · NIIN 014874137 · Part number 122-5008312 PC 42-21IN
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-487-4137 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-487-4137. Manufacturer of record part number: 122-5008312 PC 42-21IN.
Also searched as3040-01-487-4137 ·
3040014874137 ·
NIIN 014874137 ·
01-487-4137 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 122-5008312 PC 42-21IN · 122-5008312
Material Document and Classification: MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE
End Attachment Style: CLEVIS NO. 1 BOTH ENDS
Material: STEEL
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 3040-01-487-4137
NIIN: 014874137
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 122-5008312 PC 42-21IN
Manufacturer: Naval Sea Systems Command
General Description
The Connecting Link,rigid, cataloged under National Stock Number 3040-01-487-4137, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-487-4137
Primary Part Number
122-5008312 PC 42-21IN
Item Name
Connecting Link,rigid
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Body Construction
SOLID
Link Style
CLEVIS ENDS
Material Document and Classification
MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE
End Attachment Style
CLEVIS NO. 1 BOTH ENDS
Material
STEEL
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.
5365-01-487-4172122-5008312 PC 35POSSIBLE MATCH
SPACER,RING
Possible match (shared part number)Naval Sea Systems Command
2040-01-487-4586122-5008312 PC 54POSSIBLE MATCH
DOG ASSEMBLY,HATCH
Possible match (shared part number)Naval Sea Systems Command
3120-01-487-8251122-5008312 PC 15POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
3120-01-487-8255122-5008312 PC 37POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
3120-01-488-4044122-5008312 PC 20POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
NSN 3040-01-487-4137 is a Connecting Link,rigid, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-487-4137?
NSN 3040-01-487-4137 has 1 manufacturer part number on file: 122-5008312 PC 42-21IN (Naval Sea Systems Command).
What NSN replaces 3040-01-487-4137?
5 possible matches (shared part number, not a government interchangeability claim): 5365-01-487-4172, 2040-01-487-4586, 3120-01-487-8251. Verify interchangeability with system specifications before substitution.
What are the specifications of 122-5008312 PC 42-21IN?
Key specifications for 122-5008312 PC 42-21IN: Body Construction: SOLID; Link Style: CLEVIS ENDS; Material Document and Classification: MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 21.000 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-487-4137 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.