PartsTable TECHNICAL DATA SHEET
NSN 4820-01-280-8936Government record, cited

Valve, Check4820-01-280-8936

NSN 4820-01-280-8936 · NIIN 012808936 · Part number HF91-A8F-04
Eaton Corporation Dba Eaton Inoac Div Eaton · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 77842
Government record, cited
NSN 4820-01-280-8936 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-280-8936. Manufacturer of record part number: HF91-A8F-04.
Also searched as  4820-01-280-8936 · 4820012808936 · NIIN 012808936 · 01-280-8936 · FSC 4820 Valves, Nonpowered · CAGE 77842 · HF91-A8F-04
Nearby stock numbers  ·
Features
  • Valve,check — FSC 4820
  • Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN
  • Connection Style: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
  • Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Media for Which Designed: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
  • Material: STEEL CORROSION RESISTING BODY
Identification
  • NSN: 4820-01-280-8936
  • NIIN: 012808936
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: HF91-A8F-04
  • Manufacturer: Eaton Corporation Dba Eaton Inoac Div Eaton
General Description

The Valve,check, cataloged under National Stock Number 4820-01-280-8936, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. 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.

Technical Specifications
ParameterValue
NSN4820-01-280-8936
Primary Part NumberHF91-A8F-04
Item NameValve,check
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerEaton Corporation Dba Eaton Inoac Div Eaton
StatusACTIVE
Nominal Pipe Size Accommodated0.250 INCHES ALL ENDS IN
Connection StyleSTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorSTRAIGHT THRU
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING BODY
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
HF91-A8F-04 PRIMARY Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
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 4820-01-280-8936?

NSN 4820-01-280-8936 is a Valve,check, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-280-8936?

NSN 4820-01-280-8936 has 1 manufacturer part number on file: HF91-A8F-04 (Eaton Corporation Dba Eaton Inoac Div Eaton).

What are the specifications of HF91-A8F-04?

Key specifications for HF91-A8F-04: Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN; Connection Style: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-280-8936 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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