PartsTable
Technical Data Sheet
Download PDF

9M187-287 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9M187-287: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN, major_thickness: 0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN, strength_rating: ERR-060, outside_diameter: 3.221 INCHES MINIMUM AND 3.251 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-147-5622, 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
9M187-287
NSN: 5325-01-147-5622
FSC: 5325 — Fastening Devices
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
major_thickness0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter3.221 INCHES MINIMUM AND 3.251 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
material_document_and_classificationSAE 1070 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1085 OR 1086 OR 1090 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationQQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
NSN5325-01-147-5622
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9M187-287 · 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
•
USAGE DESIGN: EXTERNAL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1070 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1085 OR 1086 OR 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 3.221 INCHES MINIMUM AND 3.251 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1070 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1085 OR 1086 OR 1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER3.221 INCHES MINIMUM AND 3.251 INCHES MAXIMUM IN
MAJOR THICKNESS0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
INSIDE DIAMETER2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
RST287CD-M9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 9M187-287?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 9M187-287?
9M187-287 is a RING,RETAINING.
What parts can replace 9M187-287?
There is 1 known substitute for 9M187-287: RST287CD-M9. Substitute compatibility should be verified for your specific system.
What is the NSN for 9M187-287?
9M187-287 is cataloged in the U.S. Government catalog under NSN 5325-01-147-5622. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 9M187-287

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.