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Technical Data Sheet
PartsTable / COMPONENT / 12273417-2
12273417-2 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303SE OVERALL, head_style: FILLISTER, head_height: 0.160 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.310 INCHES NOMINAL IN, thread_length: 0.190 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-176-1982, 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
12273417-2
NSN: 5305-01-176-1982
FSC: 5305
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 303SE OVERALL
head_styleFILLISTER
head_height0.160 INCHES NOMINAL IN
thread_class2A A
head_diameter0.310 INCHES NOMINAL IN
thread_length0.190 INCHES NOMINAL IN
fastener_length0.5005 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-176-1982
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12273417-2 · 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
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 32
•
INTERNAL DRIVE STYLE: SLOT
•
HEAD HEIGHT: 0.160 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.310 INCHES NOMINAL IN
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 2
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
FASTENER LENGTH: 0.5005 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
THREAD QUANTITY PER INCH32
INTERNAL DRIVE STYLESLOT
HEAD HEIGHT0.160 INCHES NOMINAL IN
HEAD DIAMETER0.310 INCHES NOMINAL IN
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FASTENER LENGTH0.5005 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
MATERIALSTEEL COMP 303SE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
113120Interchangeable
interchangeable cross-reference
interchangeable
721898-2Interchangeable
interchangeable cross-reference
interchangeable
T-91-SInterchangeable
interchangeable cross-reference
interchangeable
460B16-128Interchangeable
interchangeable cross-reference
interchangeable
PL1Interchangeable
interchangeable cross-reference
interchangeable
4073FXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12273417-2?
12273417-2 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 12273417-2?
There are 19 known substitutes for 12273417-2: 113120, 721898-2, T-91-S and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12273417-2?
12273417-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-176-1982. 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