PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LD137-0017-3017Bushing,sleeve

The Boeing Company Div Legacy Am&m · NSN 3120-00-540-9574 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-540-9574 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-540-9574. Primary manufacturer part number: LD137-0017-3017.
Features
  • Bushing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: MIL-T-6736,COND N MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6372 ASSN STD 2ND MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 4130 OR STEEL COMP 4135 OVERALL
  • Surface Treatment: CHROMIUM OUTSIDE DIAMETER SURFACE OF BODY
  • Surface Treatment Document and Classification: QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
  • Body Inside Diameter: 0.3120 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.4355 INCHES MINIMUM AND 0.4360 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 4130 or Steel Comp 4135 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-540-9574, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-540-9574
Primary Part NumberLD137-0017-3017
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationMIL-T-6736,COND N MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6372 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 4130 OR STEEL COMP 4135 OVERALL
Surface TreatmentCHROMIUM OUTSIDE DIAMETER SURFACE OF BODY
Surface Treatment Document and ClassificationQQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
Body Inside Diameter0.3120 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN
Body Outside Diameter0.4355 INCHES MINIMUM AND 0.4360 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6130-00-059-464121115 INTERCHANGEABLE
Power Supply
Senior Operations Llc Div Senior Aerospace Ketema
5920-00-117-82802110-0005 INTERCHANGEABLE
Fuse,cartridge
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
5330-00-178-470621158-0372 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5325-00-290-28971201-560-Z3C INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
5330-00-365-004221115 INTERCHANGEABLE
Gasket
Mag Aerospace Industries, Llc Div Safran Cabins
5930-00-602-3644PM21115 INTERCHANGEABLE
Switch
Mason Electric Co. Dba Mason Controls
2520-00-871-6772114-8202A INTERCHANGEABLE
Spider,universal Joint,vehicular
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
5940-00-983-6136 INTERCHANGEABLE
Terminal Board
4720-01-045-268521115 INTERCHANGEABLE
Hose,preformed
Whirlpool Corp Dba Whirlpool Corp
4720-01-214-261321115 INTERCHANGEABLE
Hose,preformed
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
4B21S5-017 The Boeing Company Div Legacy Am&m (USA)
21115 Master Machine Products Corp (USA)
LD137-0017-3017 PRIMARY The Boeing Company Div Legacy Am&m (USA)
Related Parts
6130-00-059-4641INTERCHANGEABLE
POWER SUPPLY
21115
5920-00-117-8280INTERCHANGEABLE
FUSE,CARTRIDGE
2110-0005
5330-00-178-4706INTERCHANGEABLE
SEAL,PLAIN ENCASED
21158-0372
5325-00-290-2897INTERCHANGEABLE
STUD,TURNLOCK FASTENER
1201-560-Z3C
5330-00-365-0042INTERCHANGEABLE
GASKET
21115
5930-00-602-3644INTERCHANGEABLE
SWITCH
PM21115
2520-00-871-6772INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
114-8202A
5940-00-983-6136INTERCHANGEABLE
TERMINAL BOARD
4720-01-045-2685INTERCHANGEABLE
HOSE,PREFORMED
21115
4720-01-214-2613INTERCHANGEABLE
HOSE,PREFORMED
21115
3040-01-216-7636INTERCHANGEABLE
SHAFT,SHOULDERED
21115
4820-01-417-9435INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21115-001

Frequently Asked Questions

What is NSN 3120-00-540-9574?

NSN 3120-00-540-9574 is a Bushing,sleeve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-540-9574?

NSN 3120-00-540-9574 has 3 cross-referenced part numbers: 4B21S5-017 (The Boeing Company Div Legacy Am&m), 21115 (Master Machine Products Corp), LD137-0017-3017 (The Boeing Company Div Legacy Am&m).

What NSN replaces 3120-00-540-9574?

There are 12 known substitutes for 3120-00-540-9574: 6130-00-059-4641, 5920-00-117-8280, 5330-00-178-4706 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LD137-0017-3017?

Key specifications for LD137-0017-3017: Corner Shape: SQUARE ALL CORNERS; Material Document and Classification: MIL-T-6736,COND N MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6372 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Material: STEEL COMP 4130 OR STEEL COMP 4135 OVERALL; Surface Treatment: CHROMIUM OUTSIDE DIAMETER SURFACE OF BODY. 9 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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