PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SL-18Ring,piston

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4310-00-131-2980 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-131-2980 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-131-2980. Primary manufacturer part number: SL-18.
Features
  • Ring,piston — FSC 4310
  • Bore Diameter Oversize: 0.010 INCHES IN
  • Material: IRON OVERALL
  • FSC Application Data: STEAM PISTON,DIRECT ACTING PUMP
  • Standard Bore Diameter: 8.000 INCHES IN
  • Radial Wall Thickness: 0.3125 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-131-2980, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4310-00-131-2980
Primary Part NumberSL-18
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Bore Diameter Oversize0.010 INCHES IN
MaterialIRON OVERALL
FSC Application DataSTEAM PISTON,DIRECT ACTING PUMP
Standard Bore Diameter8.000 INCHES IN
Radial Wall Thickness0.3125 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Joint StyleVERTICAL JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-054-4008 INTERCHANGEABLE
Holder,semiconductor Device
7520-00-234-925820 INTERCHANGEABLE
Stylus,duplicating Stencil
Mimeo Mfg Co Inc
5120-00-262-84915120-00-262-8491 INTERCHANGEABLE
Wrench,pipe
General Services Administration Federal Supply Service
5930-00-296-91056502-540938PC18 INTERCHANGEABLE
Switch,sensitive
Naval Ship Systems Command
5120-00-776-18409171739 INTERCHANGEABLE
Wrench,strap
Us Army Aviation and Missile Command
5975-00-880-6285 INTERCHANGEABLE
Plate,wall,electrical
5975-00-919-8901S18 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5930-01-090-6187SL18 INTERCHANGEABLE
Switch,push
Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems
6240-01-171-9499SL18 INTERCHANGEABLE
Lamp,fluorescent
Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
6520-01-179-6053RX CN INTERCHANGEABLE
Solder,gold,dental
Jeneric/pentron Incorporated
Cross-Reference Index
Part NumberManufacturer
SL-18 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
S18 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5961-00-054-4008INTERCHANGEABLE
HOLDER,SEMICONDUCTOR DEVICE
7520-00-234-9258INTERCHANGEABLE
STYLUS,DUPLICATING STENCIL
20
5120-00-262-8491INTERCHANGEABLE
WRENCH,PIPE
5120-00-262-8491
5930-00-296-9105INTERCHANGEABLE
SWITCH,SENSITIVE
6502-540938PC18
5120-00-776-1840INTERCHANGEABLE
WRENCH,STRAP
9171739
5975-00-880-6285INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
5975-00-919-8901INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
S18
5930-01-090-6187INTERCHANGEABLE
SWITCH,PUSH
SL18
6240-01-171-9499INTERCHANGEABLE
LAMP,FLUORESCENT
SL18
6520-01-179-6053INTERCHANGEABLE
SOLDER,GOLD,DENTAL
RX CN
7690-01-240-6572INTERCHANGEABLE
MARKER,IDENTIFICATION
SL18
5330-01-305-5467INTERCHANGEABLE
SEAL,PLAIN
S18

Frequently Asked Questions

What is NSN 4310-00-131-2980?

NSN 4310-00-131-2980 is a Ring,piston, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-131-2980?

NSN 4310-00-131-2980 has 2 cross-referenced part numbers: SL-18 (Circor Naval Solutions Llc Dba Warren Pumps), S18 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4310-00-131-2980?

There are 12 known substitutes for 4310-00-131-2980: 5961-00-054-4008, 7520-00-234-9258, 5120-00-262-8491 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SL-18?

Key specifications for SL-18: Bore Diameter Oversize: 0.010 INCHES IN; Material: IRON OVERALL; FSC Application Data: STEAM PISTON,DIRECT ACTING PUMP; Standard Bore Diameter: 8.000 INCHES IN. 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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