PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3138Screw,machine

L & L Boiler Maintenance Inc · NSN 5305-00-531-1515 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-531-1515 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-531-1515. Primary manufacturer part number: 3138.
Features
  • Screw,machine — FSC 5305
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Thread Class: 3A A
  • Screw Surface Treatment: CADMIUM
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Head Style: FLAT CHAMFER
  • Thread Quantity Per Inch: 32
  • Thread Length: 0.500 INCHES MINIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-531-1515, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L & L Boiler Maintenance Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-531-1515
Primary Part Number3138
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL & L Boiler Maintenance Inc
StatusCANCELLED
Nominal Thread Diameter0.190 INCHES IN
Thread Class3A A
Screw Surface TreatmentCADMIUM
Internal Drive StyleCROSS RECESS TYPE 1
Head StyleFLAT CHAMFER
Thread Quantity Per Inch32
Thread Length0.500 INCHES MINIMUM IN
Thread Series DesignatorUNF
Thread DirectionRIGHT-HAND
Fastener Length1.750 INCHES NOMINAL IN
Head Height0.125 INCHES NOMINAL IN
Head Diameter0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
Screw MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-155-6661 INTERCHANGEABLE
Bearing,ball,annular
3439-00-224-75343138-100 INTERCHANGEABLE
Soldering Iron,electric
Assembly Technologies International Inc.
3439-00-542-0169 INTERCHANGEABLE
Soldering Iron,electric
5945-00-665-4655 INTERCHANGEABLE
Relay,electromagnetic
3020-00-739-0807 INTERCHANGEABLE
Ratchet Wheel
5960-00-931-698416-03-138-0A INTERCHANGEABLE
Electron Tube
Ballantine Laboratories Inc
5945-00-938-5329 INTERCHANGEABLE
Relay,electromagnetic
6680-00-947-0648DC3138 INTERCHANGEABLE
Counter,rotating
Bowmar Llc Dba Bowmar Instrument Corp
5305-00-954-5631 INTERCHANGEABLE
Screw,machine
5820-00-970-8392 INTERCHANGEABLE
Receiver,transmitte
Cross-Reference Index
Part NumberManufacturer
101961 Suntec Industries Inc Del Dba Suntec (USA)
3138 PRIMARY L & L Boiler Maintenance Inc (USA)
101961 Sundstrand Corp Sundstrand Hydraulics Div (USA)
3138 D & J Parts Inc (USA)
Related Parts
3110-00-155-6661INTERCHANGEABLE
BEARING,BALL,ANNULAR
3439-00-224-7534INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
3138-100
3439-00-542-0169INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
5945-00-665-4655INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
3020-00-739-0807INTERCHANGEABLE
RATCHET WHEEL
5960-00-931-6984INTERCHANGEABLE
ELECTRON TUBE
16-03-138-0A
5945-00-938-5329INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6680-00-947-0648INTERCHANGEABLE
COUNTER,ROTATING
DC3138
5305-00-954-5631INTERCHANGEABLE
SCREW,MACHINE
5820-00-970-8392INTERCHANGEABLE
RECEIVER,TRANSMITTE
5360-01-106-1313INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3138
6515-01-233-7622INTERCHANGEABLE
BAG,OSTOMY
3138

Frequently Asked Questions

What is NSN 5305-00-531-1515?

NSN 5305-00-531-1515 is a Screw,machine, manufactured by L & L Boiler Maintenance Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-531-1515?

NSN 5305-00-531-1515 has 4 cross-referenced part numbers: 101961 (Suntec Industries Inc Del Dba Suntec), 3138 (L & L Boiler Maintenance Inc), 101961 (Sundstrand Corp Sundstrand Hydraulics Div), 3138 (D & J Parts Inc).

What NSN replaces 5305-00-531-1515?

There are 12 known substitutes for 5305-00-531-1515: 3110-00-155-6661, 3439-00-224-7534, 3439-00-542-0169 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3138?

Key specifications for 3138: Nominal Thread Diameter: 0.190 INCHES IN; Thread Class: 3A A; Screw Surface Treatment: CADMIUM; Internal Drive Style: CROSS RECESS TYPE 1. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-531-1515 still in active supply?

NSN 5305-00-531-1515 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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