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61217-3 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

61217-3: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 420 OVERALL, hole_diameter: 0.141 INCHES MINIMUM AND 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.253 INCHES MAXIMUM0.253 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: OXIDE FILM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-052-5841, 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
61217-3
NSN: 5310-01-052-5841
FSC: 5310 — Nuts and Washers
CAGE: 22915 — NORTHROP GRUMMAN CORP ELECTRONIC SYSTEMS DEFENSIVE SYSTEM DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 420 OVERALL
hole_diameter0.141 INCHES MINIMUM AND 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
outside_diameter0.253 INCHES MAXIMUM0.253 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentOXIDE FILM OVERALL
material_thickness0.031 INCHES MINIMUM AND 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM0.037 INCHES MAXIMUM IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-052-5841
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 61217-3 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.253 INCHES MAXIMUM0.253 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.031 INCHES MINIMUM AND 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM0.037 INCHES MAXIMUM IN
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 420 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.253 INCHES MAXIMUM0.253 INCHES MAXIMUM IN
MATERIAL THICKNESS0.031 INCHES MINIMUM AND 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM0.037 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE FILM OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 420 OVERALL
HOLE DIAMETER0.141 INCHES MINIMUM AND 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM0.151 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
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 61217-3?
61217-3 is a WASHER,LOCK.
What is the NSN for 61217-3?
61217-3 is cataloged in the U.S. Government catalog under NSN 5310-01-052-5841. 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.