PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4141Spacer,plate

Weil Pump Co Inc · NSN 5365-00-057-3955 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-057-3955 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-057-3955. Primary manufacturer part number: 4141.
Features
  • Spacer,plate — FSC 5365
  • Style Designator: CIRCULAR
  • Material: COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485
  • Aperture Diameter: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE
  • Outside Diameter: 0.875 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Weil Pump Co Inc
Applications
  • Applications requiring Copper Alloy 462 or Copper Alloy 464 or Copper Alloy 482 or Copper Alloy 485 construction
General Description

The Spacer,plate, cataloged under National Stock Number 5365-00-057-3955, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN5365-00-057-3955
Primary Part Number4141
Item NameSpacer,plate
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Style DesignatorCIRCULAR
MaterialCOPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485
Aperture Diameter0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Material Document and ClassificationQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE
Outside Diameter0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5955-00-084-85260410-0014 INTERCHANGEABLE
Crystal Unit,quartz
Keysight Technologies Inc
5975-00-132-9472 INTERCHANGEABLE
Conduit,metal,flexible
9390-00-141-7601 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
5306-00-164-11314141 INTERCHANGEABLE
Bolt,special
Wisconsin Motors, Llc
5910-00-198-47993C6775 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Westinghouse Electric Corp
2805-00-297-0023337144C21 INTERCHANGEABLE
Piston,internal Combustion Engin
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
6625-00-392-701111225-2 INTERCHANGEABLE
Test Set Subassembly,electrical
Shallco, Inc
4730-00-476-7135D2466 90 ELBOW NPS 1/2 PVCI INTERCHANGEABLE
Elbow,pipe
American Society for Testing and Materials Dba Astm International
5940-00-500-79612Z9404R1 INTERCHANGEABLE
Terminal Board
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5342-00-790-0449 INTERCHANGEABLE
Lock,strip
Cross-Reference Index
Part NumberManufacturer
4141 PRIMARY Weil Pump Co Inc (USA)
Related Parts
5955-00-084-8526INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
0410-0014
5975-00-132-9472INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
9390-00-141-7601INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
5306-00-164-1131INTERCHANGEABLE
BOLT,SPECIAL
4141
5910-00-198-4799INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
3C6775
2805-00-297-0023INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
337144C21
6625-00-392-7011INTERCHANGEABLE
TEST SET SUBASSEMBLY,ELECTRICAL
11225-2
4730-00-476-7135INTERCHANGEABLE
ELBOW,PIPE
D2466 90 ELBOW NPS 1/2 PVCI
5940-00-500-7961INTERCHANGEABLE
TERMINAL BOARD
2Z9404R1
5342-00-790-0449INTERCHANGEABLE
LOCK,STRIP
4730-00-801-9029INTERCHANGEABLE
TRAP,STEAM
5935-00-833-6372INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SMK07-19-33S6

Frequently Asked Questions

What is NSN 5365-00-057-3955?

NSN 5365-00-057-3955 is a Spacer,plate, manufactured by Weil Pump Co Inc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-057-3955?

NSN 5365-00-057-3955 has 1 cross-referenced part number: 4141 (Weil Pump Co Inc).

What NSN replaces 5365-00-057-3955?

There are 12 known substitutes for 5365-00-057-3955: 5955-00-084-8526, 5975-00-132-9472, 9390-00-141-7601 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4141?

Key specifications for 4141: Style Designator: CIRCULAR; Material: COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485; Aperture Diameter: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE. 5 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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