The Shock Absorber,direct Action, cataloged under National Stock Number 2510-01-263-9551, is classified within Federal Supply Class 2510 (Vehicular Cab, Body, and Frame Structural Components) of the Vehicular Equipment Components group. The manufacturer of record is Tenneco Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 2510-01-263-9551 |
| Primary Part Number | 74413 |
| Item Name | Shock Absorber,direct Action |
| FSC / FSG | 2510 / 25 — Vehicular Cab, Body, and Frame Structural Components |
| Manufacturer | Tenneco Inc |
| Status | ACTIVE |
| Nominal Extended Length | 25.750 INCHES IN |
| Piston End Nominal Inside Diameter | 1.000 INCHES IN |
| Piston End Nominal Thickness | 1.750 INCHES IN |
| Cylinder End Connection Style | RING |
| Cylinder End Nominal Thickness | 1.750 INCHES IN |
| Nominal Compressed Length | 17.000 INCHES IN |
| Protective Shield Type | DUST |
| Cylinder End Nominal Inside Diameter | 1.000 INCHES IN |
| Piston End Connection Style | RING |
| Operation Method | HYDRAULIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2510-01-263-9551 is a Shock Absorber,direct Action, manufactured by Tenneco Inc, classified under FSC 2510, Vehicular Cab, Body, and Frame Structural Components. Status: active.
NSN 2510-01-263-9551 has 3 manufacturer part numbers on file: 74413 (Tenneco Inc), 12B-5-1 (Motor Coach Industries Ltd), 78157 (Maremont Corp Gabriel Div).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-697-8298. Verify interchangeability with system specifications before substitution.
Key specifications for 74413: Nominal Extended Length: 25.750 INCHES IN; Piston End Nominal Inside Diameter: 1.000 INCHES IN; Piston End Nominal Thickness: 1.750 INCHES IN; Cylinder End Connection Style: RING. 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.
NSN 2510-01-263-9551 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.