PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

XL1-1/4-NPump Unit,rotary

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-478-2876 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-478-2876 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-478-2876. Primary manufacturer part number: XL1-1/4-N.
Features
  • Pump Unit,rotary — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-01-478-2876, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-478-2876
Primary Part NumberXL1-1/4-N
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-194-36815S4408 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
5950-00-402-1653920011-14 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5330-00-567-4355100570 INTERCHANGEABLE
Gasket
Cummins Inc.
3120-00-662-7723100570 INTERCHANGEABLE
Bushing,sleeve
Meggitt North Hollywood Inc
4520-01-475-5018100570 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
3130-01-540-4369100570 INTERCHANGEABLE
Bearing Unit,plain
A V Technology Llc
Cross-Reference Index
Part NumberManufacturer
100570 Ams Instrumentation & Control Limited (GBR)
XL1-1/4-N PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
5330-00-194-3681INTERCHANGEABLE
SEAL,PLAIN ENCASED
5S4408
5950-00-402-1653INTERCHANGEABLE
COIL,RADIO FREQUENCY
920011-14
5330-00-567-4355INTERCHANGEABLE
GASKET
100570
3120-00-662-7723INTERCHANGEABLE
BUSHING,SLEEVE
100570
4520-01-475-5018INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
100570
3130-01-540-4369INTERCHANGEABLE
BEARING UNIT,PLAIN
100570

Frequently Asked Questions

What is NSN 4320-01-478-2876?

NSN 4320-01-478-2876 is a Pump Unit,rotary, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-478-2876?

NSN 4320-01-478-2876 has 2 cross-referenced part numbers: 100570 (Ams Instrumentation & Control Limited), XL1-1/4-N (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-01-478-2876?

There are 6 known substitutes for 4320-01-478-2876: 5330-00-194-3681, 5950-00-402-1653, 5330-00-567-4355 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of XL1-1/4-N?

Key specifications for XL1-1/4-N: Special Features: MFG NAME, PUMP,BARESHAFT; PART OFAVCAT-TEST AND STRIPPING MODULE. 1 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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