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Technical Data Sheet
PartsTable / COMPONENT / 42-311
42-311 ✓ 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 WAVEGUIDE ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, flexibility: RIGID SINGLE TUBING SEGMENT, head_height: 6.0 MILLIMETERS NOMINAL MM, head_diameter: 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN, thread_length: 35.0 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-432-4387, 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
42-311
NSN: 5305-00-432-4387
FSC: 5305
CAGE: 73734 — FEDERAL SCREW PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
flexibilityRIGID SINGLE TUBING SEGMENT
head_height6.0 MILLIMETERS NOMINAL MM
head_diameter0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
thread_length35.0 MILLIMETERS NOMINAL MM
fastener_length35.0 MILLIMETERS NOMINAL MM
flange_quantity2
special_featuresRECTANGULAR SHAPE;DEEP FOLD DESIGN;NONWOVEN GLASS-FREE MATERIAL;PLIABLE NOSE AND CHEEK STRIP;TIE TAPES;LINT-FREE;NON-FOGGING;BLUE AND GREEN
style_designatorSTRAIGHT TYPE
thread_directionRIGHT-HAND
waveguide_length3.500 INCHES NOMINAL IN
NSN5305-00-432-4387
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 42-311 · 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
•
FASTENER LENGTH: 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NONDEFINITIVE SPEC/STD DATA: AB TYPE
•
HEAD STYLE: FLAT COUNTERSUNK
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
HEAD DIAMETER: 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
NONMACHINE NOMINAL THREAD DIAMETER0.138 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
NONDEFINITIVE SPEC/STD DATAAB TYPE
HEAD STYLEFLAT COUNTERSUNK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL OVERALL
HEAD DIAMETER0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MS24619-11Interchangeable
interchangeable cross-reference
interchangeable
42-311Interchangeable
interchangeable cross-reference
interchangeable
508-01436-131Interchangeable
interchangeable cross-reference
interchangeable
NON27512ELInterchangeable
interchangeable cross-reference
interchangeable
4231Interchangeable
interchangeable cross-reference
interchangeable
42311ADXInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42-311?
42-311 is a WAVEGUIDE ASSEMBLY.
What parts can replace 42-311?
There are 8 known substitutes for 42-311: MS24619-11, 42-311, 508-01436-131 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 42-311?
42-311 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-432-4387. 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