PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

903521Nut,plain,hexagon

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 5310-01-485-8172 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-485-8172 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-485-8172. Primary manufacturer part number: 903521.
Features
  • Nut,plain,hexagon — FSC 5310
  • 1 verified cross-reference
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-485-8172, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. 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
NSN5310-01-485-8172
Primary Part Number903521
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3120-00-757-546090352-1 INTERCHANGEABLE
Bearing,sleeve
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
1660-00-874-2794903521 INTERCHANGEABLE
Backup Plate and Panel Assembly,
Mission Systems Orchard Park Inc
Cross-Reference Index
Part NumberManufacturer
903521 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
3120-00-757-5460INTERCHANGEABLE
BEARING,SLEEVE
90352-1
1660-00-874-2794INTERCHANGEABLE
BACKUP PLATE AND PANEL ASSEMBLY,
903521

Frequently Asked Questions

What is NSN 5310-01-485-8172?

NSN 5310-01-485-8172 is a Nut,plain,hexagon, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-485-8172?

NSN 5310-01-485-8172 has 1 cross-referenced part number: 903521 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 5310-01-485-8172?

There are 2 known substitutes for 5310-01-485-8172: 3120-00-757-5460, 1660-00-874-2794. Verify interchangeability with system specifications before substitution.

What are the specifications of 903521?

Key specifications for 903521: End Item Identification: USED ON LGL-D 2.000 IN PUMP IN. 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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