Valve, Ball4820-01-340-1266

NSN 4820-01-340-1266 · NIIN 013401266 · Part number C-7501 1IN

Watts Regulator Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79227

Government record, cited

NSN 4820-01-340-1266 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-340-1266. Manufacturer of record part number: C-7501 1IN.

Also searched as 4820-01-340-1266 · 4820013401266 · NIIN 013401266 · 01-340-1266 · FSC 4820 Valves, Nonpowered · CAGE 79227 · C-7501 1IN · C-7501/58501 1IN

Nearby stock numbers ← 4820-01-340-1265 Valve, Ball · 4820-01-340-1267 Valve, Ball →

4820-01-340-1266 — Valves, Nonpowered

Features

Valve,ball — FSC 4820
Connection Style: SOCKET (TUBE) ALL ENDS
Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
Style Designator: STRAIGHT THRU
Nominal Outside Diameter Tube Accommodated: 1.000 INCHES ALL ENDS IN
Material: STEEL COMP 304 BODY
Valve Operation Method: MANUAL
2 manufacturer part numbers on file

Identification

NSN: 4820-01-340-1266
NIIN: 013401266
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: C-7501 1IN
Manufacturer: Watts Regulator Company

General Description

The Valve,ball, cataloged under National Stock Number 4820-01-340-1266, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 6 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	4820-01-340-1266
Primary Part Number	C-7501 1IN
Item Name	Valve,ball
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
Connection Style	SOCKET (TUBE) ALL ENDS
Connection Type	UNTHREADED INTERNAL TUBE ALL ENDS
Style Designator	STRAIGHT THRU
Nominal Outside Diameter Tube Accommodated	1.000 INCHES ALL ENDS IN
Material	STEEL COMP 304 BODY
Valve Operation Method	MANUAL

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
C-7501 1IN PRIMARY	Watts Regulator Company (USA)
C-7501/58501 1IN	Watts Regulator Company (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 4820-01-340-1266?

NSN 4820-01-340-1266 is a Valve,ball, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-340-1266?

NSN 4820-01-340-1266 has 2 manufacturer part numbers on file: C-7501 1IN (Watts Regulator Company), C-7501/58501 1IN (Watts Regulator Company).

What are the specifications of C-7501 1IN?

Key specifications for C-7501 1IN: Connection Style: SOCKET (TUBE) ALL ENDS; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Style Designator: STRAIGHT THRU; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES ALL ENDS IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-340-1266 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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