The Collar,shaft, cataloged under National Stock Number 3040-01-080-9599, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Reliance Precision Limited. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-080-9599 |
| Primary Part Number | CS-7 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Reliance Precision Limited |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED SINGLE HOLE |
| Material Document and Classification | QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | SINGLE HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES SINGLE HOLE IN |
| Securing Hole Quantity | 1 |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.2498 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Thickness | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-080-9599 is a Collar,shaft, manufactured by Reliance Precision Limited, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-080-9599 has 2 manufacturer part numbers on file: CS-7 (Reliance Precision Limited), A05815 (Mbda Uk Ltd).
4 possible matches (shared part number, not a government interchangeability claim): 3920-01-132-8823, 5305-01-168-5627, 5985-01-420-4028. Verify interchangeability with system specifications before substitution.
Key specifications for CS-7: Securing Hole Type and Location: THREADED SINGLE HOLE; Material Document and Classification: QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE; Screw Thread Series Designator and Location: SINGLE HOLE UNIFIED NATIONAL COARSE (UNC); Outside Diameter: 0.500 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.