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27S5-1M — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

27S5-1M: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.232 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN, overall_height: 0.069 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN, outside_diameter: 0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN, style_designator: INTERNAL TEETH, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-541-8428, 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
27S5-1M
NSN: 5310-01-541-8428
FSC: 5310 — Nuts and Washers
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.232 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
overall_height0.069 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
outside_diameter0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
style_designatorINTERNAL TEETH
surface_treatmentCADMIUM OVERALL
material_thickness0.008 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
NSN5310-01-541-8428
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 27S5-1M · 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: INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.008 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.232 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.069 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
STYLE DESIGNATORINTERNAL TEETH
OUTSIDE DIAMETER0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
MATERIAL THICKNESS0.008 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.232 INCHES MINIMUM AND 0.239 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 27S5-1M?
27S5-1M is a WASHER,LOCK.
What is the NSN for 27S5-1M?
27S5-1M is cataloged in the U.S. Government catalog under NSN 5310-01-541-8428. 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.