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NSN 4820-01-331-6649Government record, cited

Valve, Calibrated Flow4820-01-331-6649

NSN 4820-01-331-6649 · NIIN 013316649 · Part number 8738DA
Bath Iron Works Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 70876
Government record, cited
NSN 4820-01-331-6649 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-331-6649. Manufacturer of record part number: 8738DA.
Also searched as  4820-01-331-6649 · 4820013316649 · NIIN 013316649 · 01-331-6649 · FSC 4820 Valves, Nonpowered · CAGE 70876 · 8738DA · 6207-1/2IN.
Nearby stock numbers  ·
Features
  • Valve,calibrated Flow — FSC 4820
  • Flow Control Device: DISK
  • Second End Relationship with First End: IDENTICAL
  • Body Style: STRAIGHT THRU
  • First End Style Designator: SWIVEL NUT, FLARE
  • End Connection Quantity: 2
  • First End Connection Type: UNTHREADED EXTERNAL TUBE
  • First End Outside Diameter Tube Accommodated: 0.500 INCHES NOMINAL IN
Identification
  • NSN: 4820-01-331-6649
  • NIIN: 013316649
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 8738DA
  • Manufacturer: Bath Iron Works Corporation
General Description

The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-331-6649, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bath Iron Works Corporation. Government technical data includes 7 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
ParameterValue
NSN4820-01-331-6649
Primary Part Number8738DA
Item NameValve,calibrated Flow
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerBath Iron Works Corporation
StatusACTIVE
Flow Control DeviceDISK
Second End Relationship with First EndIDENTICAL
Body StyleSTRAIGHT THRU
First End Style DesignatorSWIVEL NUT, FLARE
End Connection Quantity2
First End Connection TypeUNTHREADED EXTERNAL TUBE
First End Outside Diameter Tube Accommodated0.500 INCHES NOMINAL IN
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
6207-1/2IN. Bath Iron Works Corporation (USA)
8738DA PRIMARY Bath Iron Works Corporation (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 4820-01-331-6649?

NSN 4820-01-331-6649 is a Valve,calibrated Flow, manufactured by Bath Iron Works Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-331-6649?

NSN 4820-01-331-6649 has 2 manufacturer part numbers on file: 6207-1/2IN. (Bath Iron Works Corporation), 8738DA (Bath Iron Works Corporation).

What are the specifications of 8738DA?

Key specifications for 8738DA: Flow Control Device: DISK; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: SWIVEL NUT, FLARE. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-331-6649 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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