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PartsTable / COMPONENT / PC91046-4
PC91046-4 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, head_style: FLAT CHAMFER, head_height: 0.125 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.250 INCHES NOMINAL IN, thread_length: 0.156 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-841-2682, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
PC91046-4
NSN: 5305-00-841-2682
FSC: 5305
CAGE: 09344 — ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
head_styleFLAT CHAMFER
head_height0.125 INCHES NOMINAL IN
thread_class2A A
head_diameter0.250 INCHES NOMINAL IN
thread_length0.156 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.344 INCHES NOMINAL IN
shoulder_length0.188 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.125 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-00-841-2682
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PC91046-4 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
SHOULDER LENGTH: 0.188 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.125 INCHES NOMINAL FIRST SHOULDER IN
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OVERALL
•
FASTENER LENGTH: 0.344 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SHOULDER SHAPEROUND FIRST SHOULDER
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES IN
SHOULDER LENGTH0.188 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.125 INCHES NOMINAL FIRST SHOULDER IN
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
FASTENER LENGTH0.344 INCHES NOMINAL IN
HEAD HEIGHT0.125 INCHES NOMINAL IN
THREAD LENGTH0.156 INCHES MINIMUM IN
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
1227TInterchangeable
interchangeable cross-reference
interchangeable
1227T4311Interchangeable
interchangeable cross-reference
interchangeable
M0DEL1227T0-50UADCInterchangeable
interchangeable cross-reference
interchangeable
1311WInterchangeable
interchangeable cross-reference
interchangeable
637662Interchangeable
interchangeable cross-reference
interchangeable
705214Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PC91046-4?
PC91046-4 is a SCREW,SHOULDER.
What parts can replace PC91046-4?
There are 32 known substitutes for PC91046-4: 1227T, 1227T4311, M0DEL1227T0-50UADC and 29 more. Substitute compatibility should be verified for your specific system.
Is PC91046-4 still available?
PC91046-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026