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2040448-1 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2040448-1: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.260 INCHES MINIMUM AND 1.260 INCHES MINIMUM AND 1.270 INCHES MAXIMUM1.270 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM50.0 ROCKWELL C MAXIMUM, outside_diameter: 2.270 INCHES MINIMUM AND 2.270 INCHES MINIMUM AND 2.280 INCHES MAXIMUM2.280 INCHES MAXIMUM IN, style_designator: SPRING TENSION, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-052-0744, 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
2040448-1
NSN: 5310-01-052-0744
FSC: 5310 — Nuts and Washers
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.260 INCHES MINIMUM AND 1.260 INCHES MINIMUM AND 1.270 INCHES MAXIMUM1.270 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM50.0 ROCKWELL C MAXIMUM
outside_diameter2.270 INCHES MINIMUM AND 2.270 INCHES MINIMUM AND 2.280 INCHES MAXIMUM2.280 INCHES MAXIMUM IN
style_designatorSPRING TENSION
surface_treatmentCADMIUM OVERALL
material_thickness0.133 INCHES MINIMUM AND 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM0.143 INCHES MAXIMUM IN
material_document_and_classificationAMS5529,CONDC,17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-8837,TYPE2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-052-0744
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2040448-1 · 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-8837,TYPE2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM50.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5529,CONDC,17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.270 INCHES MINIMUM AND 2.270 INCHES MINIMUM AND 2.280 INCHES MAXIMUM2.280 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.133 INCHES MINIMUM AND 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM0.143 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837,TYPE2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM50.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5529,CONDC,17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.270 INCHES MINIMUM AND 2.270 INCHES MINIMUM AND 2.280 INCHES MAXIMUM2.280 INCHES MAXIMUM IN
MATERIAL THICKNESS0.133 INCHES MINIMUM AND 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM0.143 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER1.260 INCHES MINIMUM AND 1.260 INCHES MINIMUM AND 1.270 INCHES MAXIMUM1.270 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2040448-1?
2040448-1 is a WASHER,SPRING TENSION.
What is the NSN for 2040448-1?
2040448-1 is cataloged in the U.S. Government catalog under NSN 5310-01-052-0744. 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.