PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SCD1779-3-8Screw,close Tolerance

Howmet Global Fastening Systems Inc · NSN 5305-01-199-1335 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-199-1335 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-199-1335. Primary manufacturer part number: SCD1779-3-8.
Features
  • Screw,close Tolerance — FSC 5305
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Surface Finish: 32.0 MICROINCHES GRIP
  • Minimum Tensile Strength: 220000 POUNDS PER SQUARE INCH LBS
  • Internal Drive Style: OFFSET CRUCIFORM (TORQUE SET)
  • Grip Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OR CADMIUM AND CHROMATE OVERALL
  • Surface Finish: 32.0 MICROINCHES THREADS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp H11 Overall construction
General Description

The Screw,close Tolerance, cataloged under National Stock Number 5305-01-199-1335, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-01-199-1335
Primary Part NumberSCD1779-3-8
Item NameScrew,close Tolerance
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc
StatusCANCELLED
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Surface Finish32.0 MICROINCHES GRIP
Minimum Tensile Strength220000 POUNDS PER SQUARE INCH LBS
Internal Drive StyleOFFSET CRUCIFORM (TORQUE SET)
Grip Length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OR CADMIUM AND CHROMATE OVERALL
Surface Finish32.0 MICROINCHES THREADS
Nominal Thread Diameter0.190 INCHES IN
Material Document and ClassificationAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Class3A A
Head StyleFLAT COUNTERSUNK
Head Diameter0.339 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
MaterialSTEEL COMP H11 OVERALL
Surface Treatment Document and ClassificationNAS 672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY2 CL2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
Countersink Angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
Thread Quantity Per Inch32
Hardness Rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
Fastener Length0.818 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
Thread Length0.308 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Grip Diameter0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5310-00-012-0238120238 INTERCHANGEABLE
Nut,plain,hexagon
Us Army Aviation and Missile Command
6625-00-571-4459 INTERCHANGEABLE
Multimeter
5330-01-572-7200120238 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Sauer-Danfoss /hillsboro/ Co
Cross-Reference Index
Part NumberManufacturer
1202-3-8 Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA)
SCD1779-3-8 PRIMARY Howmet Global Fastening Systems Inc (USA)
HR204JK-3-8 PRIMARY Hi-Shear Corporation (USA)
GB510N3A8 Northrop Grumman Systems Corporation (USA)
106706T-3-8 PRIMARY Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
SFH22-3A8 Sps Technologies, Llc Dba PB Fasteners (USA)
SFH22-3A8 Sps Technologies Inc (USA)
HR204-3-8 Hi-Shear Corporation (USA)
106706H3-8 Sps Technologies, Llc Dba PB Fasteners (USA)
GB510BC3-8 Northrop Grumman Systems Corporation (USA)
1067061-3-8 Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
GB510CE3-8 Northrop Grumman Systems Corporation (USA)
SC1779-3-8 Howmet Global Fastening Systems Inc (USA)
PBF1202-3-8 PRIMARY Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA)
HR204JK-3-8 PRIMARY Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN)
Related Parts
5310-00-012-0238INTERCHANGEABLE
NUT,PLAIN,HEXAGON
120238
6625-00-571-4459INTERCHANGEABLE
MULTIMETER
5330-01-572-7200INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
120238

Frequently Asked Questions

What is NSN 5305-01-199-1335?

NSN 5305-01-199-1335 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-01-199-1335?

NSN 5305-01-199-1335 has 15 cross-referenced part numbers: 1202-3-8 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), SCD1779-3-8 (Howmet Global Fastening Systems Inc), HR204JK-3-8 (Hi-Shear Corporation), GB510N3A8 (Northrop Grumman Systems Corporation), 106706T-3-8 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana) and 10 more.

What NSN replaces 5305-01-199-1335?

There are 3 known substitutes for 5305-01-199-1335: 5310-00-012-0238, 6625-00-571-4459, 5330-01-572-7200. Verify interchangeability with system specifications before substitution.

What are the specifications of SCD1779-3-8?

Key specifications for SCD1779-3-8: Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Surface Finish: 32.0 MICROINCHES GRIP; Minimum Tensile Strength: 220000 POUNDS PER SQUARE INCH LBS; Internal Drive Style: OFFSET CRUCIFORM (TORQUE SET). 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-01-199-1335 still in active supply?

NSN 5305-01-199-1335 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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