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Technical Data Sheet
PartsTable / COMPONENT / MS16627-4137
MS16627-4137 ✓ 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 COMP 632, ring_style: INTERNAL INVERTED LUGS, usage_design: INTERNAL, major_thickness: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN, outside_diameter: 1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN, surface_treatment: PASSIVATE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-664-3048, 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
MS16627-4137
NSN: 5325-00-664-3048
FSC: 5325
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 632
ring_styleINTERNAL INVERTED LUGS
usage_designINTERNAL
major_thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
outside_diameter1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-664-3048
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS16627-4137 · 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
•
MAJOR THICKNESS: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 632
•
SURFACE TREATMENT: PASSIVATE
•
OUTSIDE DIAMETER: 1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN
•
RING STYLE: INTERNAL INVERTED LUGS
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
MAJOR THICKNESS0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 632
SURFACE TREATMENTPASSIVATE
OUTSIDE DIAMETER1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN
RING STYLEINTERNAL INVERTED LUGS
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNINTERNAL
MATERIAL HARDNESS RATING44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
403593Interchangeable
interchangeable cross-reference
interchangeable
CS3950-0024Interchangeable
interchangeable cross-reference
interchangeable
403593-1Interchangeable
interchangeable cross-reference
interchangeable
41825Interchangeable
interchangeable cross-reference
interchangeable
43006000-000Interchangeable
interchangeable cross-reference
interchangeable
SM-D-552155Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS16627-4137?
MS16627-4137 is a RING,RETAINING.
What parts can replace MS16627-4137?
There are 10 known substitutes for MS16627-4137: 403593, CS3950-0024, 403593-1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS16627-4137?
MS16627-4137 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-664-3048. 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