PartsTable
Technical Data Sheet
AN3420-20A ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include design_type: SINGLE CENTRALLY LOCATED HOLE, body_diameter: 1.240 INCHES NOMINAL IN, overall_length: 2.000 INCHES NOMINAL IN, special_features: RESILIENT RUBBER MATERIAL: NEOPRENE RUBBER, MIL-STD-417, SC515A1B1C1E3E5F2GM, style_designator: ROUND, center_hole_diameter: 0.938 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 5305-00-331-3667, 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
AN3420-20A
NSN: 5305-00-331-3667
FSC: 5305
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
design_typeSINGLE CENTRALLY LOCATED HOLE
body_diameter1.240 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
special_featuresRESILIENT RUBBER MATERIAL: NEOPRENE RUBBER, MIL-STD-417, SC515A1B1C1E3E5F2GM
style_designatorROUND
center_hole_diameter0.938 INCHES NOMINAL IN
end_item_identificationHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
nonmetallic_hardness_rating45.0 MINIMUM DUROMETER AND 55.0 MAXIMUM DUROMETER
NSN5305-00-331-3667
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN3420-20A · 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
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
THREAD LENGTH: 2.031 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
FASTENER LENGTH: 1.969 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
HEAD HEIGHT: 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
THREAD LENGTH2.031 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
FASTENER LENGTH1.969 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
HEAD HEIGHT0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD QUANTITY PER INCH32
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH LBS
HEAD STYLEFLAT CHAMFER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
357-8416-00Interchangeable
interchangeable cross-reference
interchangeable
SL14399Interchangeable
interchangeable cross-reference
interchangeable
AN3420-20AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN3420-20A?
AN3420-20A is a SCREW,MACHINE.
What parts can replace AN3420-20A?
There are 3 known substitutes for AN3420-20A: 357-8416-00, SL14399, AN3420-20A. Substitute compatibility should be verified for your specific system.
What is the NSN for AN3420-20A?
AN3420-20A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-331-3667. This indicates validated use in U.S. government and defense supply chains.
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