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Technical Data Sheet
PartsTable / COMPONENT / 549156
549156 ✓ 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 SEMICONDUCTOR DEVICE SET is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, surface_treatment: OXIDE FILM OVERALL, post_base_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, post_head_diameter: 0.148 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN, post_overall_length: 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN, snap_fastener_post_style: POST. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-641-1030, 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
549156
NSN: 5325-00-641-1030
FSC: 5325
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
surface_treatmentOXIDE FILM OVERALL
post_base_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
post_head_diameter0.148 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN
post_overall_length0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
snap_fastener_post_stylePOST
component_name_and_quantity2 SEMICONDUCTOR DEVICE DIODE
component_function_relationshipUNMATCHED
general_characteristics_item_description3 HOLES 0.189 IN. DIA; 3.887 IN. DIA; 0.876 IN. THK IN
NSN5325-00-641-1030
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549156 · 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
•
SNAP FASTENER POST STYLE: POST
•
MATERIAL: COPPER ALLOY OVERALL
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
POST HEAD DIAMETER: 0.148 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN
•
POST BASE DIAMETER: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
POST OVERALL LENGTH: 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SNAP FASTENER POST STYLEPOST
MATERIALCOPPER ALLOY OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
POST HEAD DIAMETER0.148 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN
POST BASE DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
POST OVERALL LENGTH0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
ELKIN SINNInterchangeable
interchangeable cross-reference
interchangeable
NDC00641-0320-25Interchangeable
interchangeable cross-reference
interchangeable
23401Interchangeable
interchangeable cross-reference
interchangeable
SZM40007Interchangeable
interchangeable cross-reference
interchangeable
549156Interchangeable
interchangeable cross-reference
interchangeable
DZ30708AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 549156?
549156 is a SEMICONDUCTOR DEVICE SET.
What parts can replace 549156?
There are 11 known substitutes for 549156: ELKIN SINN, NDC00641-0320-25, 23401 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 549156?
549156 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-641-1030. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026