Seat, Valve4820-01-574-0310

NSN 4820-01-574-0310 · NIIN 015740310 · Part number HBV-A2-10-0042-04

B N L Industries Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0AZ22

Government record, cited

NSN 4820-01-574-0310 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-574-0310. Manufacturer of record part number: HBV-A2-10-0042-04.

Also searched as 4820-01-574-0310 · 4820015740310 · NIIN 015740310 · 01-574-0310 · FSC 4820 Valves, Nonpowered · CAGE 0AZ22 · HBV-A2-10-0042-04 · HBV-A2-10-0042 REV A DET NO.4

Nearby stock numbers ← 4820-01-574-0300 Ball, Valve, Ported · 4820-01-574-0488 Stem, Fluid Valve →

4820-01-574-0310 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material Document and Classification: POLYTETRAFLUOROETHYLENE MFR REF SINGLE MATERIAL RESPONSE OVERALL
Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seating Surface Shape: RADIAL
2 manufacturer part numbers on file
Manufacturer of record: B N L Industries Inc

Identification

NSN: 4820-01-574-0310
NIIN: 015740310
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: HBV-A2-10-0042-04
Manufacturer: B N L Industries Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-574-0310, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B N L Industries Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-574-0310
Primary Part Number	HBV-A2-10-0042-04
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	B N L Industries Inc
Status	ACTIVE
Material Document and Classification	POLYTETRAFLUOROETHYLENE MFR REF SINGLE MATERIAL RESPONSE OVERALL
Material	PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seating Surface Shape	RADIAL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
HBV-A2-10-0042 REV A DET NO.4	B N L Industries Inc (USA)
HBV-A2-10-0042-04 PRIMARY	B N L Industries Inc (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 4820-01-574-0310?

NSN 4820-01-574-0310 is a Seat,valve, manufactured by B N L Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-574-0310?

NSN 4820-01-574-0310 has 2 manufacturer part numbers on file: HBV-A2-10-0042 REV A DET NO.4 (B N L Industries Inc), HBV-A2-10-0042-04 (B N L Industries Inc).

What are the specifications of HBV-A2-10-0042-04?

Key specifications for HBV-A2-10-0042-04: Material Document and Classification: POLYTETRAFLUOROETHYLENE MFR REF SINGLE MATERIAL RESPONSE OVERALL; Part Name Assigned by Controlling Agency: SEAT; End Item Identification: 4820-01-574-0288 BALL VALVE; NEW CONSTRUCTION LPD 17; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-574-0310 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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