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PartsTable / COMPONENT / 41-856
41-856 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 2.750 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN, thread_series: UN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-020-0045, 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
41-856
NSN: 5307-00-020-0045
FSC: 5307
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter2.750 INCHES NOMINAL IN
thread_class3B
nut_thickness0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
thread_seriesUN
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
drive_point_depth0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
drive_point_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
nominal_thread_size1.875 INCHES IN
drive_point_quantity2
NSN5307-00-020-0045
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 41-856 · 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 LENGTH: 0.310 INCHES NOMINAL NUT THREAD IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL THREAD SIZE: 0.190 INCHES NUT THREAD IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD CLASS: 3A NUT THREAD A
•
THREAD QUANTITY PER INCH: 24 NUT THREAD
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) NUT THREAD
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.310 INCHES NOMINAL NUT THREAD IN
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD SIZE0.190 INCHES NUT THREAD IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS3A NUT THREAD A
THREAD QUANTITY PER INCH24 NUT THREAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) NUT THREAD
MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
55J530SUB3PC47CVRInterchangeable
interchangeable cross-reference
interchangeable
WW8679220PC2SH12Interchangeable
interchangeable cross-reference
interchangeable
6301-3104495PC47CVRInterchangeable
interchangeable cross-reference
interchangeable
5871Interchangeable
interchangeable cross-reference
interchangeable
H2938Interchangeable
interchangeable cross-reference
interchangeable
BB22162Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 41-856?
41-856 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace 41-856?
There are 10 known substitutes for 41-856: 55J530SUB3PC47CVR, WW8679220PC2SH12, 6301-3104495PC47CVR and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 41-856?
41-856 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-020-0045. 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