NSN 4820-01-416-6889 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-416-6889. Manufacturer of record part number: 91-D-253 2IN.
Nearby stock numbers← 4820-01-416-6888 Sleeve and Slide, Directional Con
·
4820-01-416-6890 →
4820-01-416-6889 — Valves, Nonpowered
Features
Valve,check — FSC 4820
Flow Control Device: DISK
Flange Face Design: RAISED STRAIGHT ALL ENDS
Mounting Position: HORIZONTAL OR VERTICAL
Connection Type: FLANGE ALL ENDS
Style Designator: STRAIGHT THRU FLANGED ENDS
Valve Size: 2.000 INCHES IN
Face to Face Distance: 8.000 INCHES IN
Identification
NSN: 4820-01-416-6889
NIIN: 014166889
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 91-D-253 2IN
Manufacturer: Derbyshire Machine & Tool Co
General Description
The Valve,check, cataloged under National Stock Number 4820-01-416-6889, 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 8 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. Current acquisition status: Active.
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
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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 4820-01-416-6889?
NSN 4820-01-416-6889 is a Valve,check, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-416-6889?
NSN 4820-01-416-6889 has 1 manufacturer part number on file: 91-D-253 2IN (Derbyshire Machine & Tool Co).
What are the specifications of 91-D-253 2IN?
Key specifications for 91-D-253 2IN: Flow Control Device: DISK; Flange Face Design: RAISED STRAIGHT ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: FLANGE ALL ENDS. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-416-6889 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.