PartsTable TECHNICAL DATA SHEET
NSN 4820-00-036-3348Government record, cited

Seat, Valve4820-00-036-3348

NSN 4820-00-036-3348 · NIIN 000363348 · Part number 41A87-4
Ametek Inc Schutte and Koerting Div · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 53553
Government record, cited
NSN 4820-00-036-3348 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-3348. Manufacturer of record part number: 41A87-4.
Also searched as  4820-00-036-3348 · 4820000363348 · NIIN 000363348 · 00-036-3348 · FSC 4820 Valves, Nonpowered · CAGE 53553 · 41A87-4 · 43A2-2 · 43A2PC2 · 41A87PC4
Nearby stock numbers  ·
Features
  • Seat,valve — FSC 4820
  • Body Outside Diameter: 11.625 INCHES MINIMUM AND 11.627 INCHES MAXIMUM IN
  • Style Designator: PLAIN
  • Material Document and Classification: MIL-S-872,CLASS A,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
  • Body Inside Diameter: 7.578 INCHES NOMINAL IN
  • Seat Radius: 3.219 INCHES NOMINAL IN
  • Material: STEEL SEAT
  • Material: COBALT ALLOY FACE
Identification
  • NSN: 4820-00-036-3348
  • NIIN: 000363348
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 41A87-4
  • Manufacturer: Ametek Inc Schutte and Koerting Div
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-036-3348, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ametek Inc Schutte and Koerting Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-3348
Primary Part Number41A87-4
Item NameSeat,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerAmetek Inc Schutte and Koerting Div
StatusACTIVE
Body Outside Diameter11.625 INCHES MINIMUM AND 11.627 INCHES MAXIMUM IN
Style DesignatorPLAIN
Material Document and ClassificationMIL-S-872,CLASS A,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
Body Inside Diameter7.578 INCHES NOMINAL IN
Seat Radius3.219 INCHES NOMINAL IN
MaterialSTEEL SEAT
MaterialCOBALT ALLOY FACE
Seating Surface ShapeRADIAL
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
43A2-2 Ametek Inc Schutte and Koerting Div (USA)
41A87-4 PRIMARY Ametek Inc Schutte and Koerting Div (USA)
43A2PC2 Ametek Inc Schutte and Koerting Div (USA)
41A87PC4 Ametek Inc Schutte and Koerting Div (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 4820-00-036-3348?

NSN 4820-00-036-3348 is a Seat,valve, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-036-3348?

NSN 4820-00-036-3348 has 4 manufacturer part numbers on file: 43A2-2 (Ametek Inc Schutte and Koerting Div), 41A87-4 (Ametek Inc Schutte and Koerting Div), 43A2PC2 (Ametek Inc Schutte and Koerting Div), 41A87PC4 (Ametek Inc Schutte and Koerting Div).

What are the specifications of 41A87-4?

Key specifications for 41A87-4: Overall Height: 1.125 INCHES NOMINAL IN; Body Outside Diameter: 11.625 INCHES MINIMUM AND 11.627 INCHES MAXIMUM IN; Style Designator: PLAIN; Material Document and Classification: MIL-S-872,CLASS A,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-036-3348 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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