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SP135A — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SP135A: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: BERYLLIUM OVERALL, hole_diameter: 0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN, overall_height: 0.018 INCHES MINIMUM AND 0.018 INCHES MINIMUM AND 0.024 INCHES MAXIMUM0.024 INCHES MAXIMUM IN, outside_diameter: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, material_thickness: 0.006 INCHES NOMINAL0.006 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-054-2575, 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
SP135A
NSN: 5310-01-054-2575
FSC: 5310 — Nuts and Washers
CAGE: K7766 — BSI STANDARDS LIMITED (GBR)
SPECIFICATIONS
materialBERYLLIUM OVERALL
hole_diameter0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN
overall_height0.018 INCHES MINIMUM AND 0.018 INCHES MINIMUM AND 0.024 INCHES MAXIMUM0.024 INCHES MAXIMUM IN
hardness_rating350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM
outside_diameter0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.006 INCHES NOMINAL0.006 INCHES NOMINAL IN
material_document_and_classificationBS 2870,FSCM K0195 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-054-2575
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SP135A · 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
•
HARDNESS RATING: 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: BS 2870,FSCM K0195 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.006 INCHES NOMINAL0.006 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: BERYLLIUM OVERALL
•
HOLE DIAMETER: 0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.018 INCHES MINIMUM AND 0.018 INCHES MINIMUM AND 0.024 INCHES MAXIMUM0.024 INCHES MAXIMUM IN
HARDNESS RATING350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM380.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONBS 2870,FSCM K0195 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
MATERIAL THICKNESS0.006 INCHES NOMINAL0.006 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALBERYLLIUM OVERALL
HOLE DIAMETER0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SP135A?
SP135A is a WASHER,SPRING TENSION.
What is the NSN for SP135A?
SP135A is cataloged in the U.S. Government catalog under NSN 5310-01-054-2575. 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.