PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P54-6Bearing,sleeve

Bunting Bearings Corp · NSN 3120-01-303-3934 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-303-3934 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-303-3934. Primary manufacturer part number: P54-6.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: ASTM B438,TY 1,GR 1 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-5687,TY 1,GR 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY 841 OVERALL
  • Body Inside Diameter: 0.5010 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.8780 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN
  • 2 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 841 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-303-3934, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Bunting Bearings Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-303-3934
Primary Part NumberP54-6
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBunting Bearings Corp
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationASTM B438,TY 1,GR 1 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-5687,TY 1,GR 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY 841 OVERALL
Body Inside Diameter0.5010 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
Body Outside Diameter0.8780 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-117-5490136772A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-171-9815841-0054 INTERCHANGEABLE
Gage,pressure,dial Indicating
Boc Group Inc the
6685-00-239-5700P601 1/4LM2 1/2IN-3000PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-526-9283A3670 INTERCHANGEABLE
Gage,pressure,dial Indicating
Metadure Parts & Sales, Inc.
6685-00-628-4205100106 INTERCHANGEABLE
Gage,pressure,dial Indicating
Metadure Parts & Sales, Inc.
Cross-Reference Index
Part NumberManufacturer
P54-6 PRIMARY Bunting Bearings Corp (USA)
5189987 Naval Sea Systems Command (USA)
Related Parts
6685-00-117-5490INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
136772A
6685-00-171-9815INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
841-0054
6685-00-239-5700INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P601 1/4LM2 1/2IN-3000PSI
6685-00-526-9283INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
A3670
6685-00-628-4205INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
100106

Frequently Asked Questions

What is NSN 3120-01-303-3934?

NSN 3120-01-303-3934 is a Bearing,sleeve, manufactured by Bunting Bearings Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-303-3934?

NSN 3120-01-303-3934 has 2 cross-referenced part numbers: P54-6 (Bunting Bearings Corp), 5189987 (Naval Sea Systems Command).

What NSN replaces 3120-01-303-3934?

There are 5 known substitutes for 3120-01-303-3934: 6685-00-117-5490, 6685-00-171-9815, 6685-00-239-5700 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P54-6?

Key specifications for P54-6: Overall Length: 0.7450 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN; Corner Shape: SQUARE ALL CORNERS; Material Document and Classification: ASTM B438,TY 1,GR 1 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-5687,TY 1,GR 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 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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