PartsTable
Technical Data Sheet
RST-250 ✓ 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 RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: INTERNAL SELF-LOCKING, usage_design: INTERNAL, inside_diameter: 0.390 INCHES NOMINAL IN, major_thickness: 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN, outside_diameter: 0.625 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 5325-00-136-6130, 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
RST-250
NSN: 5325-00-136-6130
FSC: 5325
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL
ring_styleINTERNAL SELF-LOCKING
usage_designINTERNAL
inside_diameter0.390 INCHES NOMINAL IN
major_thickness0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
outside_diameter0.625 INCHES NOMINAL IN
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationFED STD 66,1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
NSN5325-00-136-6130
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RST-250 · 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: STEEL
SURFACE TREATMENT: CADMIUM
USAGE DESIGN: EXTERNAL
INSIDE DIAMETER: 2.341 INCHES MINIMUM AND 2.366 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
CASEHARDENING INDICATOR: NOT CASEHARDENED
MAJOR THICKNESS: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 2.591 INCHES MINIMUM AND 2.632 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
SURFACE TREATMENTCADMIUM
USAGE DESIGNEXTERNAL
INSIDE DIAMETER2.341 INCHES MINIMUM AND 2.366 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
CASEHARDENING INDICATORNOT CASEHARDENED
MAJOR THICKNESS0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.591 INCHES MINIMUM AND 2.632 INCHES MAXIMUM IN
RING STYLESPIRAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
5100-250Interchangeable
interchangeable cross-reference
interchangeable
AE2759PC188Interchangeable
interchangeable cross-reference
interchangeable
CV39S1601-365782PC188Interchangeable
interchangeable cross-reference
interchangeable
9197456Interchangeable
interchangeable cross-reference
interchangeable
WST250Interchangeable
interchangeable cross-reference
interchangeable
RST250Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RST-250?
RST-250 is a RING,RETAINING.
What parts can replace RST-250?
There are 7 known substitutes for RST-250: 5100-250, AE2759PC188, CV39S1601-365782PC188 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RST-250?
RST-250 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-136-6130. This indicates validated use in U.S. government and defense supply chains.
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