Valve Assembly4820-01-657-9577

NSN 4820-01-657-9577 · NIIN 016579577 · Part number 30 030-51

Interspiro Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 47432

Government record, cited

NSN 4820-01-657-9577 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-657-9577. Manufacturer of record part number: 30 030-51.

Also searched as 4820-01-657-9577 · 4820016579577 · NIIN 016579577 · 01-657-9577 · FSC 4820 Valves, Nonpowered · CAGE 47432 · 30 030-51

Nearby stock numbers ← 4820-01-657-9547 Valve, Check · 4820-01-657-9620 Valve, Gate →

4820-01-657-9577 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Interspiro Inc

Identification

NSN: 4820-01-657-9577
NIIN: 016579577
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 30 030-51
Manufacturer: Interspiro Inc

General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-657-9577, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Interspiro Inc. 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

Parameter	Value
NSN	4820-01-657-9577
Primary Part Number	30 030-51
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Interspiro Inc
Status	ACTIVE

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
30 030-51 PRIMARY	Interspiro 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 4820-01-657-9577?

NSN 4820-01-657-9577 is a Valve Assembly, manufactured by Interspiro Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-657-9577?

NSN 4820-01-657-9577 has 1 manufacturer part number on file: 30 030-51 (Interspiro Inc).

What are the specifications of 30 030-51?

Key specifications for 30 030-51: Special Features: FOR CONNECTION OF TWO DIVERS TO ONE SURFACE PANEL; Part Name Assigned by Controlling Agency: CONNECTION,STRAIGHT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-657-9577 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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