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5100-375 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5100-375: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, inside_diameter: 0.375 INCHES NOMINAL IN, end_item_identification: ACTUATOR,MODEL MS05Q, part_name_assigned_by_controlling_agency: RING,SNAP,EXTERNAL,3/8 I.D.. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-282-6962, 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
5100-375
NSN: 5325-00-282-6962
NIINs: 002826962, 016656705
FSC: 5325 — Fastening Devices
CAGE: 79136 — TRUARC COMPANY LLC DBA WALDES TRUARC (USA)
SPECIFICATIONS
materialSTEEL COMP 303
inside_diameter0.375 INCHES NOMINAL IN
end_item_identificationACTUATOR,MODEL MS05Q
part_name_assigned_by_controlling_agencyRING,SNAP,EXTERNAL,3/8 I.D.
NSN5325-00-282-6962
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5100-375 · 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 HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 3.438 INCHES MINIMUM AND 3.488 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: EXTERNAL
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
INSIDE DIAMETER3.438 INCHES MINIMUM AND 3.488 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 7
RST375Reference document
Same NSN cross-reference
Reference document — Secondary reference
E-N-375Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS16624-375Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
57199Reference document
Same NSN cross-reference
Reference document — Secondary reference
12Z64PC76Reference document
Same NSN cross-reference
Reference document — Secondary reference
RSN375Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5100-375?
5100-375 is a RING,RETAINING.
What parts can replace 5100-375?
There are 7 known substitutes for 5100-375: RST375, E-N-375, MS16624-375 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5100-375?
5100-375 is cataloged in the U.S. Government catalog under NSN 5325-00-282-6962. 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.