PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9531Bushing,sleeve

Master Machine Products Corp · NSN 3120-00-618-0318 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-618-0318 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-618-0318. Primary manufacturer part number: 9531.
Features
  • Bushing,sleeve — FSC 3120
  • Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
  • Surface Treatment: CADMIUM OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: STEEL COMP 4130 OVERALL
  • Material Document and Classification: MIL-S-6758 COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-618-0318, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Master Machine Products Corp. 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
NSN3120-00-618-0318
Primary Part Number9531
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMaster Machine Products Corp
StatusACTIVE
Surface Finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Surface TreatmentCADMIUM OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialSTEEL COMP 4130 OVERALL
Material Document and ClassificationMIL-S-6758 COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Body Outside Diameter0.3730 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1560-00-097-6749953-1 INTERCHANGEABLE
Ladder,rope,emergency
Ami Industries, Inc Div Utc Aerospace Systems
2920-00-603-72522067F2 INTERCHANGEABLE
Switch,lock,ignition
Oshkosh Defense Llc
2990-00-790-2644103605 INTERCHANGEABLE
Muffler,exhaust
Allianz Sweeper Company
5330-00-891-56699531 INTERCHANGEABLE
Seal,plain Encased
Blako Inc. Dba Blakeslee
5355-00-935-7631 INTERCHANGEABLE
Knob
5950-00-967-4562232211 INTERCHANGEABLE
Transformer,power
Woodward, Inc.
6145-01-115-32049531 INTERCHANGEABLE
Kit,wire,hookup
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5310-01-199-33399531 INTERCHANGEABLE
Nut
Coffin Turbo Pump Inc
4820-01-199-66649531 INTERCHANGEABLE
Stem,fluid Valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4820-01-304-28479531 INTERCHANGEABLE
Seat,valve
Tescom Corp Dba Tescom Div Tescom
Cross-Reference Index
Part NumberManufacturer
9531 PRIMARY Master Machine Products Corp (USA)
S710-4-1-600 Northrop Grumman Systems Corporation (USA)
S710-4-1-600 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
1560-00-097-6749INTERCHANGEABLE
LADDER,ROPE,EMERGENCY
953-1
2920-00-603-7252INTERCHANGEABLE
SWITCH,LOCK,IGNITION
2067F2
2990-00-790-2644INTERCHANGEABLE
MUFFLER,EXHAUST
103605
5330-00-891-5669INTERCHANGEABLE
SEAL,PLAIN ENCASED
9531
5355-00-935-7631INTERCHANGEABLE
KNOB
5950-00-967-4562INTERCHANGEABLE
TRANSFORMER,POWER
232211
6145-01-115-3204INTERCHANGEABLE
KIT,WIRE,HOOKUP
9531
5310-01-199-3339INTERCHANGEABLE
NUT
9531
4820-01-199-6664INTERCHANGEABLE
STEM,FLUID VALVE
9531
4820-01-304-2847INTERCHANGEABLE
SEAT,VALVE
9531
3040-01-411-3177INTERCHANGEABLE
WOBBLESHAFT ASSEMBLY
95-3-1
5310-01-420-3566INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
9531

Frequently Asked Questions

What is NSN 3120-00-618-0318?

NSN 3120-00-618-0318 is a Bushing,sleeve, manufactured by Master Machine Products Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-618-0318?

NSN 3120-00-618-0318 has 3 cross-referenced part numbers: 9531 (Master Machine Products Corp), S710-4-1-600 (Northrop Grumman Systems Corporation), S710-4-1-600 (Northrop Grumman Systems Corporation).

What NSN replaces 3120-00-618-0318?

There are 12 known substitutes for 3120-00-618-0318: 1560-00-097-6749, 2920-00-603-7252, 2990-00-790-2644 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9531?

Key specifications for 9531: Overall Length: 1.6000 INCHES MINIMUM AND 1.6050 INCHES MAXIMUM IN; Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Treatment: CADMIUM OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com