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PartsTable / COMPONENT / S1850-0A085
S1850-0A085 ✓ 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 STUD,CONTINUOUS THREAD is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, overall_length: 1.125 INCHES NOMINAL IN, thread_direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED, surface_treatment: NICKEL OVERALL, nominal_thread_size: 0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED 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 5307-00-990-6509, 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
S1850-0A085
NSN: 5307-00-990-6509
FSC: 5307
CAGE: 09017 — EDO (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
overall_length1.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentNICKEL OVERALL
nominal_thread_size0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
thread_quantity_per_inch20 LOCATION NOT OTHERWISE SPECIFIED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
material_document_and_classificationQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
NSN5307-00-990-6509
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S1850-0A085 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL: COPPER ALLOY 360
•
THREAD QUANTITY PER INCH: 20 LOCATION NOT OTHERWISE SPECIFIED
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT: NICKEL OVERALL
•
NOMINAL THREAD SIZE: 0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
MATERIALCOPPER ALLOY 360
THREAD QUANTITY PER INCH20 LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTNICKEL OVERALL
NOMINAL THREAD SIZE0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH1.125 INCHES NOMINAL IN
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MIL-S-1222HInterchangeable
interchangeable cross-reference
interchangeable
MS35311-189Interchangeable
interchangeable cross-reference
interchangeable
FF-S-85Interchangeable
interchangeable cross-reference
interchangeable
5/8-11 UNC-2A X 3.00 LGInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222JInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222TYPE1STYLEAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1850-0A085?
S1850-0A085 is a STUD,CONTINUOUS THREAD.
What parts can replace S1850-0A085?
There are 18 known substitutes for S1850-0A085: MIL-S-1222H, MS35311-189, FF-S-85 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S1850-0A085?
S1850-0A085 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-990-6509. 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