The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-805-1995, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 23 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-805-1995 |
| Primary Part Number | 531177 |
| Item Name | Shaft,axle,automotive |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 26 STUD(S) AND 2 UNTHREADED HOLE(S) |
| Second End Type | SPLINED |
| First End Pitch Diameter | 2.250 INCHES NOMINAL IN |
| First End Type | SPLINED |
| Second End Spline Quantity | 18 |
| Second End Bearing Seat | NOT INCLUDED |
| Flange Thickness at Mounting Hole | 0.680 INCHES NOMINAL IN |
| First End Spline Pressure Angle in Deg | 30.0 |
| First End Spline Quantity | 18 |
| Second End Spline Pressure Angle in Deg | 30.0 |
| Material Document and Classification | SAE E4340H ASSN STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 3.120 INCHES NOMINAL IN |
| First End Spline Type | INVOLUTE |
| Flange Overall Thickness | 1.060 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN |
| Thread Size | 1/2 - 20 |
| Screw Thread Series Designator | UNF |
| Material | STEEL COMP 4340H |
| Flange Outside Diameter | 8.310 INCHES NOMINAL IN |
| First End Bearing Seat | NOT INCLUDED |
| Metallic Hardness Rating | 42.0 MINIMUM ROCKWELL C AND 48.0 MAXIMUM ROCKWELL C |
| Second End Pitch Diameter | 2.250 INCHES NOMINAL IN |
| Hole Diameter | 0.656 INCHES NOMINAL IN |
| Second End Spline Length | 3.120 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 531177 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
NSN 2520-00-805-1995 is a Shaft,axle,automotive, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-805-1995 has 1 manufacturer part number on file: 531177 (Fwd Seagrave Holdings Lp).
Key specifications for 531177: Mounting Facility Type and Quantity: 26 STUD(S) AND 2 UNTHREADED HOLE(S); Second End Type: SPLINED; First End Pitch Diameter: 2.250 INCHES NOMINAL IN; First End Type: SPLINED. 23 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2520-00-805-1995 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.