The Sleeve,valve, cataloged under National Stock Number 4820-01-184-1893, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, 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 | 4820-01-184-1893 |
| Primary Part Number | 12335138 |
| Item Name | Sleeve,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL MATL; BORED,SHOULDERED CYLINTRICAL ITEM; ONE END 0.600 IN. DIA,0.110 INS W: NEXT STEP 0.697 IN. DIA,0.620 INS W; NEXT GROOVE 0.600 IN. DIA,0.096 INS W; NEXT STEP 0.782 IN. DIA,0.183 INS W; NEXT STEP 0.535 IN. DIA,0.294 INS WIDE WITH 4 HOLES DRILLED THROUGH 0.188 IN. DIA; SECOND END STEP0.503 IN. DIA,0.406 INS LG WITH BEVELD END 0.030 INS BY 45 DEGREES; BORED THROUGH WITH TWO COUNTERBORES; 1ST CBORE 0.443 IN. DIA WITH 45 DEGREE VALVE SEAT ANGLE 0.073 INS LG;2ND CBORE 0.386 IN. DIA,0.587 INS LG; 0.250 IN. BORE DIA,0.402 INS LG; 1.062 O/A SLEEVE LENGTH IN |
| 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 |
|---|---|
| 12335138 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4820-01-184-1893 is a Sleeve,valve, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-184-1893 has 1 manufacturer part number on file: 12335138 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12335138: General Characteristics Item Description: STEEL MATL; BORED,SHOULDERED CYLINTRICAL ITEM; ONE END 0.600 IN. DIA,0.110 INS W: NEXT STEP 0.697 IN. DIA,0.620 INS W; NEXT GROOVE 0.600 IN. DIA,0.096 INS W; NEXT STEP 0.782 IN. DIA,0.183 INS W; NEXT STEP 0.535 IN. DIA,0.294 INS WIDE WITH 4 HOLES DRILLED THROUGH 0.188 IN. DIA; SECOND END STEP0.503 IN. DIA,0.406 INS LG WITH BEVELD END 0.030 INS BY 45 DEGREES; BORED THROUGH WITH TWO COUNTERBORES; 1ST CBORE 0.443 IN. DIA WITH 45 DEGREE VALVE SEAT ANGLE 0.073 INS LG;2ND CBORE 0.386 IN. DIA,0.587 INS LG; 0.250 IN. BORE DIA,0.402 INS LG; 1.062 O/A SLEEVE LENGTH 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.