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Technical Data Sheet
PartsTable / COMPONENT / P344
P344 ✓ 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

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC, drive_type: SERRATED OR SCREW SLOT, head_style: TEE NO. 1, design_type: THREADED, head_height: 0.312 INCHES NOMINAL IN, head_length: 0.750 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 5306-00-207-8745, 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
P344
NSN: 5306-00-207-8745
FSC: 5306
CAGE: 74965 — CLARK-RELIANCE LLC DBA JERGUSON GAGE & VALVE (USA)
SPECIFICATIONS
materialPLASTIC
drive_typeSERRATED OR SCREW SLOT
head_styleTEE NO. 1
design_typeTHREADED
head_height0.312 INCHES NOMINAL IN
head_length0.750 INCHES NOMINAL IN
thread_class3A A
thread_length1.562 INCHES MINIMUM IN
fastener_length1.562 INCHES NOMINAL IN
overall_diameter1.063 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedSHOULDER
NSN5306-00-207-8745
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: P344 · 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
•
HEAD STYLE: TEE NO. 1
•
THREAD LENGTH: 1.562 INCHES MINIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
FASTENER LENGTH: 1.562 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD HEIGHT: 0.312 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.375 INCHES NOMINAL IN
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLETEE NO. 1
THREAD LENGTH1.562 INCHES MINIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FASTENER LENGTH1.562 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.312 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL IN
THREAD CLASS3A A
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD QUANTITY PER INCH16
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
119409Upgraded Successor
successor cross-reference
successor
FF-B-584FUpgraded Successor
successor cross-reference
successor
548052Upgraded Successor
successor cross-reference
successor
MS35751-105Upgraded Successor
successor cross-reference
successor
P344Upgraded Successor
successor cross-reference
successor
E226 REV K PC33Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P344?
P344 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace P344?
There are 8 known substitutes for P344: 119409, FF-B-584F, 548052 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P344?
P344 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-207-8745. 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