NSN 4820-01-663-1838 · NIIN 016631838 · Part number 0751921K
R. H. Sheppard Co., Inc. Dba Sheppard · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 78222
Government record, cited
NSN 4820-01-663-1838 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-663-1838. Manufacturer of record part number: 0751921K.
Supply Items and Quantities: (2) PLUG,PIPE .125X.27 ST; (1) SPRING,COIL .205X.281X5.06 ST; (2) BALLS; (1) ROD,GUIDE .180 OD X 2.75 NY;
2 manufacturer part numbers on file
Manufacturer of record: R. H. Sheppard Co., Inc. Dba Sheppard
Identification
NSN: 4820-01-663-1838
NIIN: 016631838
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0751921K
Manufacturer: R. H. Sheppard Co., Inc. Dba Sheppard
General Description
The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-663-1838, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is R. H. Sheppard Co., Inc. Dba Sheppard. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-663-1838
Primary Part Number
0751921K
Item Name
Parts Kit,safety Relief Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
R. H. Sheppard Co., Inc. Dba Sheppard
Status
ACTIVE
Component Quantity
6
Supply Items and Quantities
(2) PLUG,PIPE .125X.27 ST; (1) SPRING,COIL .205X.281X5.06 ST; (2) BALLS; (1) ROD,GUIDE .180 OD X 2.75 NY;
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-663-1838?
NSN 4820-01-663-1838 is a Parts Kit,safety Relief Valve, manufactured by R. H. Sheppard Co., Inc. Dba Sheppard, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-663-1838?
NSN 4820-01-663-1838 has 2 manufacturer part numbers on file: 2ET4 (Oshkosh Defense Llc), 0751921K (R. H. Sheppard Co., Inc. Dba Sheppard).
What are the specifications of 0751921K?
Key specifications for 0751921K: Component Quantity: 6; Supply Items and Quantities: (2) PLUG,PIPE .125X.27 ST; (1) SPRING,COIL .205X.281X5.06 ST; (2) BALLS; (1) ROD,GUIDE .180 OD X 2.75 NY;; End Item Identification: 4210-01-622-0440. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-663-1838 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.