PartsTable TECHNICAL DATA SHEET

NSN 4820-01-458-0404Government record, cited

Valve, Calibrated Flow4820-01-458-0404

NSN 4820-01-458-0404 · NIIN 014580404

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-458-0404 · 4820014580404 · NIIN 014580404 · 01-458-0404 · FSC 4820 Valves, Nonpowered · 1682B 2353-1402 · 1682-B · 2353-1402

Nearby stock numbers ← 4820-01-458-0403 Valve, Ball · 4820-01-458-0405 Valve, Ball →

4820-01-458-0404 — Valves, Nonpowered

Features

Valve,calibrated Flow — FSC 4820
Flow Control Device: DISK, FLAT
Second End Relationship with First End: IDENTICAL
Body Style: STRAIGHT THRU
First End Style Designator: SOCKET W/BRAZING RING
Material Document and Classification: MIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Material Document and Classification: MIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
End Connection Quantity: 2

Identification

NSN: 4820-01-458-0404
NIIN: 014580404
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-458-0404, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-458-0404
Item Name	Valve,calibrated Flow
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DISK, FLAT
Second End Relationship with First End	IDENTICAL
Body Style	STRAIGHT THRU
First End Style Designator	SOCKET W/BRAZING RING
Material Document and Classification	MIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Material Document and Classification	MIL-B-16444 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
End Connection Quantity	2
First End Connection Type	UNTHREADED INTERNAL PIPE
First End Nominal Pipe Size Accommodated	1.500 INCHES IN
Valve Discharge Flow Rate	41.0 GALLONS PER MINUTE

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

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-480-04862353-1422ACL 1.50 X 1.25 IN POSSIBLE MATCH

VALVE,CALIBRATED FLOW

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-503-57192353-1381 POSSIBLE MATCH

VALVE,CALIBRATED FLOW

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-538-86975865-12SK POSSIBLE MATCH

PARTS KIT,VALVE

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-538-87102353-1342A 1.50 X 1.25IN POSSIBLE MATCH

VALVE,CALIBRATED FLOW

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-625-79955865-1SK POSSIBLE MATCH

REPAIR KIT,VALVE

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-670-99445865-25SK POSSIBLE MATCH

REPAIR KIT,VALVE

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

4820-01-695-54155865-5SK POSSIBLE MATCH

REPAIR KIT,VALVE

Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
1682B 2353-1402	5/2 Secondary reference U.S. Government activity
1682-B	D/9 Drawing number reference only U.S. Government activity
2353-1402	3/2 Design control — primary reference U.S. Government activity

Related Parts

4820-01-480-0486POSSIBLE MATCH

VALVE,CALIBRATED FLOW

2353-1422ACL 1.50 X 1.25 IN

4820-01-503-5719POSSIBLE MATCH

VALVE,CALIBRATED FLOW

2353-1381

4820-01-538-8697POSSIBLE MATCH

PARTS KIT,VALVE

5865-12SK

4820-01-538-8710POSSIBLE MATCH

VALVE,CALIBRATED FLOW

2353-1342A 1.50 X 1.25IN

4820-01-625-7995POSSIBLE MATCH

REPAIR KIT,VALVE

5865-1SK

4820-01-670-9944POSSIBLE MATCH

REPAIR KIT,VALVE

5865-25SK

4820-01-695-5415POSSIBLE MATCH

REPAIR KIT,VALVE

5865-5SK

Frequently Asked Questions

What is NSN 4820-01-458-0404?

NSN 4820-01-458-0404 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-458-0404?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-480-0486, 4820-01-503-5719, 4820-01-538-8697. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-458-0404?

Key specifications for 4820-01-458-0404: Flow Control Device: DISK, FLAT; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: SOCKET W/BRAZING RING. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-458-0404 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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