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Technical Data Sheet
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37823 ✓ Verified by PartsTable
Lindy · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The O-CC90 PENTAX DSLR case is designed for the PENTAX K-3 and the PENTAX K-3 II DSLR cameras. Key specifications include end_item_identification: 3930-01-508-0886, part_name_assigned_by_controlling_agency: COUPLING NUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-358-9954, 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
37823
NSN: 5310-00-358-9954
FSC: 5310
CAGE: 54123 — COLSON CORP THE (USA)
SPECIFICATIONS
end_item_identification3930-01-508-0886
part_name_assigned_by_controlling_agencyCOUPLING NUT
NSN5310-00-358-9954
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 37823 · Lindy ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LOCKING FEATURE: FREE-RUNNING ALL METAL DESIGN
•
THREAD SERIES: UNEF
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2B
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN
THREAD SERIESUNEF
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.875 INCHES IN
MATERIALSTEEL OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
NUT HEIGHT0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
UU-J-390Interchangeable
interchangeable cross-reference
interchangeable
UU-J-390 ST3Interchangeable
interchangeable cross-reference
interchangeable
13562Interchangeable
interchangeable cross-reference
interchangeable
8364034Interchangeable
interchangeable cross-reference
interchangeable
9562Interchangeable
interchangeable cross-reference
interchangeable
420229Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37823?
37823 is a END RING,BEAD CHAIN manufactured by Lindy.
What parts can replace 37823?
There are 13 known substitutes for 37823: UU-J-390, UU-J-390 ST3, 13562 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 37823?
37823 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-358-9954. 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