The Lock,valve Spring Retainer, cataloged under National Stock Number 2805-01-110-1072, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2805-01-110-1072 |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| First Ridge Radius | 0.027 INCHES NOMINAL IN |
| Minimum Inside Diameter | 0.325 INCHES IN |
| Thread Provision | UNTHREADED |
| Distance From Bottom to First Ridge Center | 0.184 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.505 INCHES NOMINAL IN |
| First Ridge Width | 0.054 INCHES NOMINAL IN |
| Largest Inside Diameter | 0.360 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE W/TWO RIDGES-LOWER OUTSIDE RADIUS |
| Distance Between First and Second Ridge Centers | 0.162 INCHES NOMINAL IN |
| Largest Outside Width | 0.505 INCHES NOMINAL IN |
| Second Ridge Width | 0.054 INCHES NOMINAL IN |
| Outside Included Angle in Deg | 83.0 |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL |
| Second Ridge Radius | 0.027 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 |
| Reference | Meaning |
|---|---|
| 48028 | 3/9 Design control — primary reference Taylor-Dunn Corporation Dba Metro Crown International |
NSN 2805-01-110-1072 is a Lock,valve Spring Retainer, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 2825-01-111-8831, 1680-01-240-0576, 5315-01-479-3974. Verify interchangeability with system specifications before substitution.
Key specifications for 2805-01-110-1072: Overall Height: 0.370 INCHES NOMINAL IN; First Ridge Radius: 0.027 INCHES NOMINAL IN; Minimum Inside Diameter: 0.325 INCHES IN; Thread Provision: UNTHREADED. 15 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.