The Retainer,disk,valve, cataloged under National Stock Number 4820-01-249-3494, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-249-3494 |
| Primary Part Number | P1511E-00 |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 0.250 INCHES IN |
| Valve Design Control Activity | 70667 |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| P1511E-00 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| NAP911 | D/9 Drawing number reference only Atlas Valve Co |
| P1511E | C/1 Advisory reference — outside the item-of-supply concept Atlas Valve Co |
| P1511E-00 | 5/9 Secondary reference Atlas Valve Co |
| NAP911 PC20 P1511E | 5/9 Secondary reference Atlas Valve Co |
| NAP911 PIECE 20 | 5/9 Secondary reference Atlas Valve Co |
NSN 4820-01-249-3494 is a Retainer,disk,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-249-3494 has 1 manufacturer part number on file: P1511E-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for P1511E-00: Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 0.250 INCHES IN; Valve Design Control Activity: 70667; Material: NICKEL ALLOY. 4 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.