NSN 4820-01-138-0318 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-138-0318. Manufacturer of record part number: 88-D-205.
General Characteristics Item Description: ATTACHMENT METHOD IS BY TWO ROUNDHOLES,MEASURING 0.812 INCHES IN DIAM ETER IN
1 manufacturer part number on file
Manufacturer of record: Derbyshire Machine & Tool Co
Identification
NSN: 4820-01-138-0318
NIIN: 011380318
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 88-D-205
Manufacturer: Derbyshire Machine & Tool Co
General Description
The Retainer,valve, cataloged under National Stock Number 4820-01-138-0318, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-138-0318
Primary Part Number
88-D-205
Item Name
Retainer,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Derbyshire Machine & Tool Co
Status
ACTIVE
General Characteristics Item Description
ATTACHMENT METHOD IS BY TWO ROUNDHOLES,MEASURING 0.812 INCHES IN DIAM ETER IN
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 4820-01-138-0318?
NSN 4820-01-138-0318 is a Retainer,valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-138-0318?
NSN 4820-01-138-0318 has 1 manufacturer part number on file: 88-D-205 (Derbyshire Machine & Tool Co).
What are the specifications of 88-D-205?
Key specifications for 88-D-205: General Characteristics Item Description: ATTACHMENT METHOD IS BY TWO ROUNDHOLES,MEASURING 0.812 INCHES IN DIAM ETER IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-138-0318 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.