The Ring,piston, cataloged under National Stock Number 2805-00-675-1335, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is American Terra Vehicles Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-675-1335 |
| Primary Part Number | 998030400BB1102 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | American Terra Vehicles Inc |
| Status | ACTIVE |
| FSC Application Data | GASOLINE ENGINE |
| Material Document and Classification | AMS 7310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| Joint Style | VERTICAL JOINT |
| Oil Passage Type and Quantity | 1 GROOVE OUTSIDE PERIPHERY |
| Oil Passage Type and Quantity | 6 SLOT HORIZONTALLY THROUGH RING |
| Radial Wall Thickness | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Standard Bore Diameter | 2.250 INCHES IN |
| Material | IRON OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 998030400BB1102 PRIMARY | American Terra Vehicles Inc (USA) |
| AA7A304 | Renk America Llc Div Renk America (USA) |
| AA7A304 PRIMARY | American Terra Vehicles Inc (USA) |
| Reference | Meaning |
|---|---|
| AA7A304 | 5/9 Secondary reference Deco-Grand Inc Sub of Grand Machining Co |
| 998030400BB1102 | 5/9 Secondary reference Deco-Grand Inc Sub of Grand Machining Co |
| 998030400BB1102 | 5/9 Secondary reference J R S Industries Inc |
NSN 2805-00-675-1335 is a Ring,piston, manufactured by American Terra Vehicles Inc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-675-1335 has 3 manufacturer part numbers on file: 998030400BB1102 (American Terra Vehicles Inc), AA7A304 (Renk America Llc Div Renk America), AA7A304 (American Terra Vehicles Inc).
Key specifications for 998030400BB1102: FSC Application Data: GASOLINE ENGINE; Overall Width: 2.2500 INCHES NOMINAL IN; Material Document and Classification: AMS 7310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL. 11 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.