PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10177Ring,wearing

Rps-Fl, Inc. Dba Rps Inc · NSN 4320-00-398-7995 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-7995 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-7995. Primary manufacturer part number: 10177.
Features
  • Ring,wearing — FSC 4320
  • Body Outside Diameter: 5.063 INCHES NOMINAL IN
  • Body Inside Diameter: 4.125 INCHES NOMINAL IN
  • Largest External Anchor Flange Radius: 2.750 INCHES NOMINAL IN
  • Right Side Flange Thickness: 0.188 INCHES NOMINAL IN
  • Corner Shape: ROUND INSIDE RIGHT CORNER
  • Distance From End: 0.250 INCHES NOMINAL IN
  • Distance Between Flanges: 0.438 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-398-7995, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rps-Fl, Inc. Dba Rps Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 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
NSN4320-00-398-7995
Primary Part Number10177
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRps-Fl, Inc. Dba Rps Inc
StatusACTIVE
Body Outside Diameter5.063 INCHES NOMINAL IN
Body Inside Diameter4.125 INCHES NOMINAL IN
Largest External Anchor Flange Radius2.750 INCHES NOMINAL IN
Right Side Flange Thickness0.188 INCHES NOMINAL IN
Corner ShapeROUND INSIDE RIGHT CORNER
Distance From End0.250 INCHES NOMINAL IN
Distance Between Flanges0.438 INCHES NOMINAL IN
Corner ShapeSQUARE INSIDE LEFT CORNER
MaterialCOPPER ALLOY
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Distance Below Centerline0.063 INCHES NOMINAL IN
Left Side Flange Thickness0.188 INCHES NOMINAL IN
Body StyleINTERNAL FLANGE W/EXTERNAL LOCKING FLANGE
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Smallest External Anchor Flange Radius2.813 INCHES NOMINAL IN
End to Flange Distance0.625 INCHES NOMINAL IN
Internal Flange Width0.125 INCHES NOMINAL IN
Internal Flange Inside Diameter3.875 INCHES NOMINAL IN
Corner Radius0.094 INCHES NOMINAL INSIDE RIGHT CORNER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2915-00-048-716410177 INTERCHANGEABLE
Plunger,fuel Valve
Mcculloch Corp
5998-00-109-2041 INTERCHANGEABLE
Holder,electrical Card
4730-00-186-9961AS5195W0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
5930-00-296-4445138803HC INTERCHANGEABLE
Switch Section,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5999-00-683-27498628691 INTERCHANGEABLE
Wire Mesh,knitted
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5950-00-916-797110177 INTERCHANGEABLE
Transformer,audio Frequency
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
1680-00-975-051510177 INTERCHANGEABLE
Strap Assembly,litt
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5305-01-328-853410177 INTERCHANGEABLE
Screw,cap,hexagon Head
Qwint Data Inc
5315-01-417-86486408361 FIND 29 INTERCHANGEABLE
Pin,tapered,plain
Naval Sea Systems Command
5305-01-421-946410177 INTERCHANGEABLE
Screw,machine
Spx Fluid Power
Cross-Reference Index
Part NumberManufacturer
SL4361PC55 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL4272PC96 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL4274PC96 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
171267B Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
10177 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
SL4358PC55 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
4435P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
4435P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
2915-00-048-7164INTERCHANGEABLE
PLUNGER,FUEL VALVE
10177
5998-00-109-2041INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
4730-00-186-9961INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5195W0402
5930-00-296-4445INTERCHANGEABLE
SWITCH SECTION,ROTARY
138803HC
5999-00-683-2749INTERCHANGEABLE
WIRE MESH,KNITTED
8628691
5950-00-916-7971INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
10177
1680-00-975-0515INTERCHANGEABLE
STRAP ASSEMBLY,LITT
10177
5305-01-328-8534INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
10177
5315-01-417-8648INTERCHANGEABLE
PIN,TAPERED,PLAIN
6408361 FIND 29
5305-01-421-9464INTERCHANGEABLE
SCREW,MACHINE
10177
7240-01-601-5894INTERCHANGEABLE
PAN,DRIP
5985-01-682-8610INTERCHANGEABLE
BAG,ANTENNA
10177

Frequently Asked Questions

What is NSN 4320-00-398-7995?

NSN 4320-00-398-7995 is a Ring,wearing, manufactured by Rps-Fl, Inc. Dba Rps Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-398-7995?

NSN 4320-00-398-7995 has 8 cross-referenced part numbers: SL4361PC55 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL4272PC96 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL4274PC96 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 171267B (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 10177 (Rps-Fl, Inc. Dba Rps Inc) and 3 more.

What NSN replaces 4320-00-398-7995?

There are 12 known substitutes for 4320-00-398-7995: 2915-00-048-7164, 5998-00-109-2041, 4730-00-186-9961 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10177?

Key specifications for 10177: Body Outside Diameter: 5.063 INCHES NOMINAL IN; Body Inside Diameter: 4.125 INCHES NOMINAL IN; Largest External Anchor Flange Radius: 2.750 INCHES NOMINAL IN; Right Side Flange Thickness: 0.188 INCHES NOMINAL IN. 20 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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