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905-23 — RING,PISTON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

905-23: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include end_item_identification: PROCESSING MACHINE,RADIOGRAPHIC FILM,AUTOMATIC; 6525-01-167-8814, part_name_assigned_by_controlling_agency: BUSHING L ARM END ITEM NSN 6525-01-167-8814. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-253-8221, 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
905-23
NSN: 5310-00-253-8221
NIINs: 002538221, 005891254, 012141618, 012979753, 014705948
FSC: 5310 — Nuts and Washers
CAGE: 75915 — LITTELFUSE, INC. (USA)
SPECIFICATIONS
end_item_identificationPROCESSING MACHINE,RADIOGRAPHIC FILM,AUTOMATIC; 6525-01-167-8814
part_name_assigned_by_controlling_agencyBUSHING L ARM END ITEM NSN 6525-01-167-8814
NSN5310-00-253-8221
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 905-23 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
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MATERIAL THICKNESS: 0.022 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.505 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 905-23?
905-23 is a RING,PISTON.
What is the NSN for 905-23?
905-23 is cataloged in the U.S. Government catalog under NSN 5310-00-253-8221. 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.