PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HP3400Adapter,straight,pipe to Boss

Baumbach Engineering Co · NSN 4730-00-454-7545 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-454-7545 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-454-7545. Primary manufacturer part number: HP3400.
Features
  • Adapter,straight,pipe to Boss — FSC 4730
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Thread Series Designator: NH SECOND END
  • Thread Series Designator: NPT FIRST END
  • Nominal Thread Size: 0.750 INCHES SECOND END IN
  • Thread Quantity Per Inch: 14 SECOND END
  • Nominal Overall Length: 1.250 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Boss, cataloged under National Stock Number 4730-00-454-7545, 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 Baumbach Engineering Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-454-7545
Primary Part NumberHP3400
Item NameAdapter,straight,pipe to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerBaumbach Engineering Co
StatusACTIVE
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Nominal Thread Size0.750 INCHES FIRST END IN
Thread Series DesignatorNH SECOND END
Thread Series DesignatorNPT FIRST END
Nominal Thread Size0.750 INCHES SECOND END IN
Thread Quantity Per Inch14 SECOND END
Nominal Overall Length1.250 INCHES IN
Connection TypeTHREADED EXTERNAL PIPE FIRST END
MaterialCOPPER ALLOY OVERALL
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Connection StylePLAIN (PIPE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5365-00-089-4451 INTERCHANGEABLE
Spacer,sleeve
5310-00-297-58931569 INTERCHANGEABLE
Washer,flat
R.w. Fernstrum & Company
2940-00-350-9071309735 INTERCHANGEABLE
Filter Element,fluid
New Holland N.v.nc.
2520-00-393-09071569 INTERCHANGEABLE
Yoke,release Clutch
Dana Off Highway Products, Llc
5120-00-505-5918 INTERCHANGEABLE
Drift Pin
4730-00-555-8204 INTERCHANGEABLE
Nut,tube Coupling
5330-00-599-4748 INTERCHANGEABLE
Gasket
5940-00-823-14101569 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4330-00-897-2713922972 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
3120-01-202-27501569 INTERCHANGEABLE
Bushing,sleeve
Lawler Manufacturing Company, Inc.
Cross-Reference Index
Part NumberManufacturer
HP3400 PRIMARY Baumbach Engineering Co (USA)
1569 Krug Intl Technology Systems Div (USA)
Related Parts
5365-00-089-4451INTERCHANGEABLE
SPACER,SLEEVE
5310-00-297-5893INTERCHANGEABLE
WASHER,FLAT
1569
2940-00-350-9071INTERCHANGEABLE
FILTER ELEMENT,FLUID
309735
2520-00-393-0907INTERCHANGEABLE
YOKE,RELEASE CLUTCH
1569
5120-00-505-5918INTERCHANGEABLE
DRIFT PIN
4730-00-555-8204INTERCHANGEABLE
NUT,TUBE COUPLING
5330-00-599-4748INTERCHANGEABLE
GASKET
5940-00-823-1410INTERCHANGEABLE
TERMINAL,LUG
1569
4330-00-897-2713INTERCHANGEABLE
FILTER ELEMENT,FLUID
922972
3120-01-202-2750INTERCHANGEABLE
BUSHING,SLEEVE
1569
5985-01-328-0442INTERCHANGEABLE
CONTROL,ANTENNA
1569AS1800
6750-01-382-8557INTERCHANGEABLE
RINSE,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 4730-00-454-7545?

NSN 4730-00-454-7545 is a Adapter,straight,pipe to Boss, manufactured by Baumbach Engineering Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-454-7545?

NSN 4730-00-454-7545 has 2 cross-referenced part numbers: HP3400 (Baumbach Engineering Co), 1569 (Krug Intl Technology Systems Div).

What NSN replaces 4730-00-454-7545?

There are 12 known substitutes for 4730-00-454-7545: 5365-00-089-4451, 5310-00-297-5893, 2940-00-350-9071 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HP3400?

Key specifications for HP3400: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Nominal Thread Size: 0.750 INCHES FIRST END IN; Thread Series Designator: NH SECOND END; Thread Series Designator: NPT FIRST END. 11 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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