PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15921Bushing,sleeve

Aerosonic Llc · NSN 3120-01-320-9952 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-320-9952 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-320-9952. Primary manufacturer part number: 15921.
Features
  • Bushing,sleeve — FSC 3120
  • Body Outside Diameter: 0.1555 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
  • Corner Shape: CHAMFERED ALL CORNERS
  • Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES, INTERNAL FLANGE ONE END
  • Material: BRASS OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Aerosonic Llc
Applications
  • Applications requiring Brass Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-01-320-9952, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Aerosonic Llc. Government technical data includes 5 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-320-9952
Primary Part Number15921
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAerosonic Llc
StatusACTIVE
Body Outside Diameter0.1555 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
Corner ShapeCHAMFERED ALL CORNERS
Material Document and ClassificationQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES, INTERNAL FLANGE ONE END
MaterialBRASS OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
9540-00-803-5582 INTERCHANGEABLE
Angle,structural
5133-01-399-0708 INTERCHANGEABLE
Drill,twist
5925-01-583-4242RP2101 INTERCHANGEABLE
Circuit Breaker
Altech Corporation
Cross-Reference Index
Part NumberManufacturer
15921 PRIMARY Aerosonic Llc (USA)
Related Parts
9540-00-803-5582INTERCHANGEABLE
ANGLE,STRUCTURAL
5133-01-399-0708INTERCHANGEABLE
DRILL,TWIST
5925-01-583-4242INTERCHANGEABLE
CIRCUIT BREAKER
RP2101

Frequently Asked Questions

What is NSN 3120-01-320-9952?

NSN 3120-01-320-9952 is a Bushing,sleeve, manufactured by Aerosonic Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-320-9952?

NSN 3120-01-320-9952 has 1 cross-referenced part number: 15921 (Aerosonic Llc).

What NSN replaces 3120-01-320-9952?

There are 3 known substitutes for 3120-01-320-9952: 9540-00-803-5582, 5133-01-399-0708, 5925-01-583-4242. Verify interchangeability with system specifications before substitution.

What are the specifications of 15921?

Key specifications for 15921: Overall Length: 0.1220 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM IN; Body Outside Diameter: 0.1555 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN; Corner Shape: CHAMFERED ALL CORNERS; Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 6 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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