The Retainer,gear Shaft, cataloged under National Stock Number 3950-01-123-3077, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-123-3077 |
| Item Name | Retainer,gear Shaft |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL COPPER; 7.250 IN. OD; 3 HOLES 0.641 IN. DIA EVENLY SPACED ON 6.250 IN. DIA BOLT CIRCLE; ADDITIONAL HOLES VARIOUS SIZES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 520-4674701 ITEM 6 | 3/2 Design control — primary reference U.S. Government activity |
| 520-4674701 | D/9 Drawing number reference only U.S. Government activity |
NSN 3950-01-123-3077 is a Retainer,gear Shaft, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-154-6863. Verify interchangeability with system specifications before substitution.
Key specifications for 3950-01-123-3077: General Characteristics Item Description: NICKEL COPPER; 7.250 IN. OD; 3 HOLES 0.641 IN. DIA EVENLY SPACED ON 6.250 IN. DIA BOLT CIRCLE; ADDITIONAL HOLES VARIOUS SIZES IN. 1 specification is 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.