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RSN-177 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

RSN-177: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 1.651 INCHES NOMINAL IN, major_thickness: 0.062 INCHES NOMINAL IN, outside_diameter: 1.907 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-424-6667, 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
RSN-177
NSN: 5325-01-424-6667
FSC: 5325 — Fastening Devices
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1090
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter1.651 INCHES NOMINAL IN
major_thickness0.062 INCHES NOMINAL IN
outside_diameter1.907 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-424-6667
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RSN-177 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1070 ASSN STD 1ST MATERIAL RESPONSE AND AISI 1074 ASSN STD 2ND MATERIAL RESPONSE AND AISI 1078 ASSN STD 3RD MATERIAL RESPONSE AND AISI 1080 ASSN STD 4TH MATERIAL RESPONSE AND AISI 1084 ASSN STD 5TH MATERIAL RESPONSE AND AISI 1085 ASSN STD 6TH MATERIAL RESPONSE AND AISI 1090 ASSN STD 7TH MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 1.907 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.062 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.651 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPIRAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1070 ASSN STD 1ST MATERIAL RESPONSE AND AISI 1074 ASSN STD 2ND MATERIAL RESPONSE AND AISI 1078 ASSN STD 3RD MATERIAL RESPONSE AND AISI 1080 ASSN STD 4TH MATERIAL RESPONSE AND AISI 1084 ASSN STD 5TH MATERIAL RESPONSE AND AISI 1085 ASSN STD 6TH MATERIAL RESPONSE AND AISI 1090 ASSN STD 7TH MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER1.907 INCHES NOMINAL IN
MAJOR THICKNESS0.062 INCHES NOMINAL IN
INSIDE DIAMETER1.651 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
MATERIALSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1090
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 2
120-11000PC22Reference document
Same NSN cross-reference
Reference document — Secondary reference
L120-10 PC 22Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is RSN-177?
RSN-177 is a RING,RETAINING.
What parts can replace RSN-177?
There are 2 known substitutes for RSN-177: 120-11000PC22, L120-10 PC 22. Substitute compatibility should be verified for your specific system.
What is the NSN for RSN-177?
RSN-177 is cataloged in the U.S. Government catalog under NSN 5325-01-424-6667. This indicates validated use in U.S. government and defense supply chains.
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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.