The Cartridge,valve,check, cataloged under National Stock Number 4820-01-162-0168, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Goodrich Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-162-0168 |
| Primary Part Number | M2304-C2949S-12Q-.185 |
| Item Name | Cartridge,valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL BODY,1.218 IN. BORE DIA; 1.920 IN O/A LG; 3000.0 PSI MAX WP STANDARD CRACKING PRESSURE 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 |
|---|---|
| M2304-C2949S-12Q-.185 | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| C2949S-12Q-.185 | 3/2 Design control — primary reference U.S. Government activity |
| M2304 | D/9 Drawing number reference only Goodrich Corp Dba Goodrich Corp |
| M2304-C2949S-12Q-.185 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 4820-01-162-0168 is a Cartridge,valve,check, manufactured by Goodrich Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-162-0168 has 1 manufacturer part number on file: M2304-C2949S-12Q-.185 (Goodrich Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 4810-01-167-2154, 4820-01-214-9192, 4730-01-284-4950. Verify interchangeability with system specifications before substitution.
Key specifications for M2304-C2949S-12Q-.185: General Characteristics Item Description: STEEL BODY,1.218 IN. BORE DIA; 1.920 IN O/A LG; 3000.0 PSI MAX WP STANDARD CRACKING PRESSURE 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.