PartsTable TECHNICAL DATA SHEET
NSN 4820-01-274-3613Government record, cited

Valve, Safety Relief4820-01-274-3613

NSN 4820-01-274-3613 · NIIN 012743613 · Part number AT103021
Deere & Company Dba Deere John Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 75755
Government record, cited
NSN 4820-01-274-3613 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-274-3613. Manufacturer of record part number: AT103021.
Also searched as  4820-01-274-3613 · 4820012743613 · NIIN 012743613 · 01-274-3613 · FSC 4820 Valves, Nonpowered · CAGE 75755 · AT103021 · AT82316
Nearby stock numbers  ·
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: BALL
  • Disk Loading Method: SPRING
  • Valve Operation Method: AUTOMATIC
  • 1 manufacturer part number on file
  • Manufacturer of record: Deere & Company Dba Deere John Co
Identification
  • NSN: 4820-01-274-3613
  • NIIN: 012743613
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: AT103021
  • Manufacturer: Deere & Company Dba Deere John Co
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-274-3613, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deere & Company Dba Deere John Co. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-274-3613
Primary Part NumberAT103021
Item NameValve,safety Relief
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerDeere & Company Dba Deere John Co
StatusACTIVE
Flow Control DeviceBALL
Disk Loading MethodSPRING
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
AT103021 PRIMARY Deere & Company Dba Deere John Co (USA)
Reference documents
ReferenceMeaning
AT103021 5/9 Secondary reference
Deere & Co
AT82316 5/9 Secondary reference
Deere & Co
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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 4820-01-274-3613?

NSN 4820-01-274-3613 is a Valve,safety Relief, manufactured by Deere & Company Dba Deere John Co, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-274-3613?

NSN 4820-01-274-3613 has 1 manufacturer part number on file: AT103021 (Deere & Company Dba Deere John Co).

What are the specifications of AT103021?

Key specifications for AT103021: Flow Control Device: BALL; Disk Loading Method: SPRING; Special Features: CARTRIDGE TYPE; Valve Operation Method: AUTOMATIC. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-274-3613 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.
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