PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

331927Seal,plain

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 5330-00-071-1937 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-071-1937 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-071-1937. Primary manufacturer part number: 331927.
Features
  • Seal,plain — FSC 5330
  • Accommodated Shaft Diameter: 0.875 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Material: STEEL INTERNALLY MOLDED-IN REINFORCEMENT
  • Housing Bore Diameter: 1.250 INCHES NOMINAL IN
  • Seal Width: 0.188 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SINGLE LIP
  • Construction: SOLID
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element construction
General Description

The Seal,plain, cataloged under National Stock Number 5330-00-071-1937, is classified within Federal Supply Class 5330 (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. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-071-1937
Primary Part Number331927
Item NameSeal,plain
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Accommodated Shaft Diameter0.875 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
MaterialSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
Housing Bore Diameter1.250 INCHES NOMINAL IN
Seal Width0.188 INCHES NOMINAL IN
Cross-Sectional Shape StyleSINGLE LIP
ConstructionSOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-077-0606SS6158H1L7 INTERCHANGEABLE
Seal,plain Encased
Johns Manville Intl
Cross-Reference Index
Part NumberManufacturer
331927 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
5330-00-077-0606INTERCHANGEABLE
SEAL,PLAIN ENCASED
SS6158H1L7

Frequently Asked Questions

What is NSN 5330-00-071-1937?

NSN 5330-00-071-1937 is a Seal,plain, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-071-1937?

NSN 5330-00-071-1937 has 1 cross-referenced part number: 331927 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 5330-00-071-1937?

There is 1 known substitute for 5330-00-071-1937: 5330-00-077-0606. Verify interchangeability with system specifications before substitution.

What are the specifications of 331927?

Key specifications for 331927: Accommodated Shaft Diameter: 0.875 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC SEALING ELEMENT; Material: STEEL INTERNALLY MOLDED-IN REINFORCEMENT; Housing Bore Diameter: 1.250 INCHES NOMINAL IN. 7 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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