PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51620Housing Pump Spacer

Hathaway Corporation · NSN 1420-01-037-1746 · FSC 1420 · No Item Name Available
Verified by PartsTable
NSN 1420-01-037-1746 — this item is cataloged by the U.S. Government under National Stock Number 1420-01-037-1746. Primary manufacturer part number: 51620.
Features
  • Housing Pump Spacer — FSC 1420
  • General Characteristics Item Description: STEEL CRES PER QQ-S-763,CLASS 416,TYPE A,.202 IN.LONG,.250 IN.DIAMETER IN
  • 1 verified cross-reference
  • Primary manufacturer: Hathaway Corporation
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Housing Pump Spacer, cataloged under National Stock Number 1420-01-037-1746, is classified within Federal Supply Class 1420 (No Item Name Available) of the Guided Missiles group. The primary manufacturer of record is Hathaway Corporation. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1420-01-037-1746
Primary Part Number51620
Item NameHousing Pump Spacer
FSC / FSG1420 / 14 — No Item Name Available
ManufacturerHathaway Corporation
StatusACTIVE
General Characteristics Item DescriptionSTEEL CRES PER QQ-S-763,CLASS 416,TYPE A,.202 IN.LONG,.250 IN.DIAMETER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-01-112-8352 INTERCHANGEABLE
Hammer,hand
6530-01-318-296851620 INTERCHANGEABLE
Pad,positioning,surgical
Olympic Medical Corp
Cross-Reference Index
Part NumberManufacturer
51620 Hathaway Corporation (USA)
Related Parts
5120-01-112-8352INTERCHANGEABLE
HAMMER,HAND
6530-01-318-2968INTERCHANGEABLE
PAD,POSITIONING,SURGICAL
51620

Frequently Asked Questions

What is NSN 1420-01-037-1746?

NSN 1420-01-037-1746 is a Housing Pump Spacer, manufactured by Hathaway Corporation, classified under FSC 1420 (No Item Name Available). Status: active.

What are the part numbers for NSN 1420-01-037-1746?

NSN 1420-01-037-1746 has 1 cross-referenced part number: 51620 (Hathaway Corporation).

What NSN replaces 1420-01-037-1746?

There are 2 known substitutes for 1420-01-037-1746: 5120-01-112-8352, 6530-01-318-2968. Verify interchangeability with system specifications before substitution.

What are the specifications of 51620?

Key specifications for 51620: General Characteristics Item Description: STEEL CRES PER QQ-S-763,CLASS 416,TYPE A,.202 IN.LONG,.250 IN.DIAMETER IN; End Item Identification: AIM-4F WSEM. 2 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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