PartsTable TECHNICAL DATA SHEET
NSN 4730-00-971-2602Government record, cited

Restrictor, Fluid Flow4730-00-971-2602

NSN 4730-00-971-2602 · NIIN 009712602 · Part number 128HM10305-1
Northrop Grumman Systems Corporation · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 79RG9
Government record, cited
NSN 4730-00-971-2602 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-971-2602. Manufacturer of record part number: 128HM10305-1.
Also searched as  4730-00-971-2602 · 4730009712602 · NIIN 009712602 · 00-971-2602 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 79RG9 · 128HM10305-1 · 128HM10305
Nearby stock numbers  ·
Features
  • Restrictor,fluid Flow — FSC 4730
  • Length: 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN
  • Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
  • Design Type: TUBULAR
  • Outside Diameter: 1.293 INCHES MINIMUM AND 1.294 INCHES MAXIMUM IN
  • Material: STEEL CORROSION RESISTING
  • Orifice Diameter: 0.999 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
  • 1 manufacturer part number on file
Identification
  • NSN: 4730-00-971-2602
  • NIIN: 009712602
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 128HM10305-1
  • Manufacturer: Northrop Grumman Systems Corporation
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-971-2602, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-971-2602
Primary Part Number128HM10305-1
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Length0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN
Thread ProvisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
Design TypeTUBULAR
Outside Diameter1.293 INCHES MINIMUM AND 1.294 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING
Orifice Diameter0.999 INCHES MINIMUM AND 1.000 INCHES MAXIMUM 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
128HM10305-1 PRIMARY Northrop Grumman Systems Corporation (USA)
Reference documents
ReferenceMeaning
128HM10305-1 5/9 Secondary reference
Northrop Grumman Systems Corporation
128HM10305 D/9 Drawing number reference only
Northrop Grumman Systems Corporation
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-00-971-2602?

NSN 4730-00-971-2602 is a Restrictor,fluid Flow, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-971-2602?

NSN 4730-00-971-2602 has 1 manufacturer part number on file: 128HM10305-1 (Northrop Grumman Systems Corporation).

What are the specifications of 128HM10305-1?

Key specifications for 128HM10305-1: Length: 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN; Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Outside Diameter: 1.293 INCHES MINIMUM AND 1.294 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-971-2602 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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