PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2122-1/2 NPTPlug,pipe

Itt Grinnell Corp · NSN 4730-00-623-9785 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-623-9785 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-623-9785. Primary manufacturer part number: 2122-1/2 NPT.
Features
  • Plug,pipe — FSC 4730
  • Material: STEEL OVERALL
  • Head Type: SOLID
  • Thread Series Designator: NPT EXTERNAL
  • Connection Style: PLAIN
  • Nominal Thread Size: 0.500 INCHES EXTERNAL IN
  • Body Type: SOLID
  • Thread Direction: RIGHT-HAND EXTERNAL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-00-623-9785, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Itt Grinnell Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-623-9785
Primary Part Number2122-1/2 NPT
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerItt Grinnell Corp
StatusACTIVE
MaterialSTEEL OVERALL
Head TypeSOLID
Thread Series DesignatorNPT EXTERNAL
Connection StylePLAIN
Nominal Thread Size0.500 INCHES EXTERNAL IN
Body TypeSOLID
Thread DirectionRIGHT-HAND EXTERNAL
Nominal Pipe Size for Which Designed0.500 INCHES IN
Drive End StyleRAISED SQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2640-00-138-8328PP1 INTERCHANGEABLE
Patch,inner Tube Repair
Technical Rubber Company, Inc.
3010-00-141-2301PP1 INTERCHANGEABLE
Disk,clutch,nonvehicular
Cmbf Products Inc
6625-00-424-4897 INTERCHANGEABLE
Probability Set,electrical Noise
6665-00-542-1177PP-1578/PD INTERCHANGEABLE
Charger,radiac Detector
Joint Electronics Type Designation System
6625-00-796-3156PP1 INTERCHANGEABLE
Voltmeter
Bach-Simpson Ltd
8020-01-129-1143RE 011291143 INTERCHANGEABLE
Brush,paint
Defense Logistics Agency Dba Defense Supply Center Philadelphia
7021-01-413-1140PP1 INTERCHANGEABLE
Computer,digital
Dranetz Technologies Inc
6150-01-518-8103PP-1 INTERCHANGEABLE
Power Pack
United Security Products Inc
Cross-Reference Index
Part NumberManufacturer
2122-1/2 NPT Itt Grinnell Corp (USA)
PP14S Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
PP1 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
Related Parts
2640-00-138-8328INTERCHANGEABLE
PATCH,INNER TUBE REPAIR
PP1
3010-00-141-2301INTERCHANGEABLE
DISK,CLUTCH,NONVEHICULAR
PP1
6625-00-424-4897INTERCHANGEABLE
PROBABILITY SET,ELECTRICAL NOISE
6665-00-542-1177INTERCHANGEABLE
CHARGER,RADIAC DETECTOR
PP-1578/PD
6625-00-796-3156INTERCHANGEABLE
VOLTMETER
PP1
8020-01-129-1143INTERCHANGEABLE
BRUSH,PAINT
RE 011291143
7021-01-413-1140INTERCHANGEABLE
COMPUTER,DIGITAL
PP1
6150-01-518-8103INTERCHANGEABLE
POWER PACK
PP-1

Frequently Asked Questions

What is NSN 4730-00-623-9785?

NSN 4730-00-623-9785 is a Plug,pipe, manufactured by Itt Grinnell Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-623-9785?

NSN 4730-00-623-9785 has 3 cross-referenced part numbers: 2122-1/2 NPT (Itt Grinnell Corp), PP14S (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), PP1 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture).

What NSN replaces 4730-00-623-9785?

There are 8 known substitutes for 4730-00-623-9785: 2640-00-138-8328, 3010-00-141-2301, 6625-00-424-4897 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2122-1/2 NPT?

Key specifications for 2122-1/2 NPT: Material: STEEL OVERALL; Head Type: SOLID; Thread Series Designator: NPT EXTERNAL; Connection Style: PLAIN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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