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Technical Data Sheet
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RST-175-CD — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

RST-175-CD: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 1.637 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN, major_thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, strength_rating: ERR-060, outside_diameter: 1.873 INCHES MINIMUM AND 1.893 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-295-8809, 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-175-CD
NSN: 5325-01-295-8809
FSC: 5325 — Fastening Devices
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter1.637 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
major_thickness0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter1.873 INCHES MINIMUM AND 1.893 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-295-8809
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RST-175-CD · 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
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 1.873 INCHES MINIMUM AND 1.893 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 1.637 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER1.873 INCHES MINIMUM AND 1.893 INCHES MAXIMUM IN
MAJOR THICKNESS0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
INSIDE DIAMETER1.637 INCHES MINIMUM AND 1.657 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
SURFACE TREATMENTCADMIUM AND CHROMATE
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is RST-175-CD?
RST-175-CD is a RING,RETAINING.
What is the NSN for RST-175-CD?
RST-175-CD is cataloged in the U.S. Government catalog under NSN 5325-01-295-8809. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.