PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

903157C1Flange,pipe,swivel Retaining

Rtx Corporation Div Pratt & Whitney · NSN 4730-00-755-7609 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-755-7609 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-755-7609. Primary manufacturer part number: 903157C1.
Features
  • Flange,pipe,swivel Retaining — FSC 4730
  • Recess Depth: 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
  • Center to Center Distance Between Bolt Holes Along Length: 2.062 INCHES NOMINAL IN
  • Recess Diameter: 1.515 INCHES NOMINAL IN
  • Style Designator: BOLT HOLE CONNECTOR PLATE
  • Surface Treatment Document and Classification: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
  • Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS
  • Surface Treatment: ZINC
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-00-755-7609, 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 Rtx Corporation Div Pratt & Whitney. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-755-7609
Primary Part Number903157C1
Item NameFlange,pipe,swivel Retaining
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRtx Corporation Div Pratt & Whitney
StatusCANCELLED
Recess Depth0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
Center to Center Distance Between Bolt Holes Along Length2.062 INCHES NOMINAL IN
Recess Diameter1.515 INCHES NOMINAL IN
Style DesignatorBOLT HOLE CONNECTOR PLATE
Surface Treatment Document and ClassificationQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
Operating Pressure and Type3000.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS
Surface TreatmentZINC
Specification/standard Data81349-MIL-F-52525 GOVERNMENT SPECIFICATION AND 96906-MS39294 GOVERNMENT STANDARD
Face Seating Surface ConditionGROUND
Flange Length2.750 INCHES NOMINAL IN
Flange Section StyleRAISED FACED, DISHED
Bolt Hole Quantity4
Flange Width2.220 INCHES NOMINAL IN
Thickness0.620 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed1.000 INCHES IN
Outside Edge to Bolt Hole Center Distance Along Width0.344 INCHES NOMINAL IN
Criticality Code JustificationFEAT
Bolt Hole Diameter0.406 INCHES NOMINAL IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-089-3406 INTERCHANGEABLE
Flange,pipe,swivel Retaining
4730-00-116-5229 INTERCHANGEABLE
Flange,pipe,swivel Retaining
4730-00-255-0560 INTERCHANGEABLE
Flange,pipe,swivel Retaining
4730-00-400-6544 INTERCHANGEABLE
Flange,pipe,swivel Retaining
4730-00-451-2704 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-472-2611 INTERCHANGEABLE
Adapter,straight,tube to Hose
6240-00-824-09240L7152AS15TPL INTERCHANGEABLE
Lamp,incandescent
Wamco, Inc. Dba Wamco Inc
4730-01-007-2641 INTERCHANGEABLE
Elbow,tube to Hose
4730-01-017-8284 INTERCHANGEABLE
Elbow,tube to Hose
4730-01-074-6595 INTERCHANGEABLE
Flange,pipe,swivel Retaining
Cross-Reference Index
Part NumberManufacturer
903157C1 Rtx Corporation Div Pratt & Whitney (USA)
M52525/16-16G Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
903157C1 Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA)
MS39294-16 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-52525 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-52525 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M52525/16-16-16G Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4730007557609 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
M52525/16-16 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-52525/16 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-089-3406INTERCHANGEABLE
FLANGE,PIPE,SWIVEL RETAINING
4730-00-116-5229INTERCHANGEABLE
FLANGE,PIPE,SWIVEL RETAINING
4730-00-255-0560INTERCHANGEABLE
FLANGE,PIPE,SWIVEL RETAINING
4730-00-400-6544INTERCHANGEABLE
FLANGE,PIPE,SWIVEL RETAINING
4730-00-451-2704INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-472-2611INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
6240-00-824-0924INTERCHANGEABLE
LAMP,INCANDESCENT
0L7152AS15TPL
4730-01-007-2641INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-01-017-8284INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-01-074-6595INTERCHANGEABLE
FLANGE,PIPE,SWIVEL RETAINING
4730-01-075-1919INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-01-075-2104INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE

Frequently Asked Questions

What is NSN 4730-00-755-7609?

NSN 4730-00-755-7609 is a Flange,pipe,swivel Retaining, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-755-7609?

NSN 4730-00-755-7609 has 10 cross-referenced part numbers: 903157C1 (Rtx Corporation Div Pratt & Whitney), M52525/16-16G (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 903157C1 (Solar Turbines Incorporated Dba Solar Turbines Incorporated), MS39294-16 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-52525 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 4730-00-755-7609?

There are 12 known substitutes for 4730-00-755-7609: 4730-00-089-3406, 4730-00-116-5229, 4730-00-255-0560 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 903157C1?

Key specifications for 903157C1: Recess Depth: 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN; Center to Center Distance Between Bolt Holes Along Length: 2.062 INCHES NOMINAL IN; Recess Diameter: 1.515 INCHES NOMINAL IN; Special Features: WEAPON SYSTEM ESSENTIAL. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-755-7609 still in active supply?

NSN 4730-00-755-7609 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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