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PS1220-4 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PS1220-4: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, usage_design: EXTERNAL, inside_diameter: 0.386 INCHES NOMINAL IN, major_thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-076-0209, 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
PS1220-4
NSN: 5325-00-076-0209
NIINs: 000760209, 009649153
FSC: 5325 — Fastening Devices
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL
ring_styleC
usage_designEXTERNAL
inside_diameter0.386 INCHES NOMINAL IN
major_thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating67.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 72.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationFED STD NO. 66,AISIC1066 THROUGH C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THROUGH 1090 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-076-0209
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PS1220-4 · 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: 67.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 72.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD NO. 66,AISIC1066 THROUGH C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THROUGH 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.386 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: C
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING67.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 72.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD NO. 66,AISIC1066 THROUGH C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THROUGH 1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
INSIDE DIAMETER0.386 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEC
SURFACE TREATMENTCADMIUM AND CHROMATE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 6
5103-43Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
5103-43MDReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS16632-1043Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5203-43-S-MDReference document
Same NSN cross-reference
Reference document — Secondary reference
487-3Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
2000-43-ST-CDReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PS1220-4?
PS1220-4 is a RING,RETAINING.
What parts can replace PS1220-4?
There are 6 known substitutes for PS1220-4: 5103-43, 5103-43MD, MS16632-1043 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PS1220-4?
PS1220-4 is cataloged in the U.S. Government catalog under NSN 5325-00-076-0209. 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.