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BN 1374 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BN 1374: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 21.0 MILLIMETERS NOMINAL MM, overall_height: 5.6 MILLIMETERS MINIMUM AND 6.4 MILLIMETERS MAXIMUM MM, outside_diameter: 45.0 MILLIMETERS NOMINAL MM, style_designator: SPRING TENSION, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-707-8592, 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
BN 1374
NSN: 5310-01-707-8592
FSC: 5310 — Nuts and Washers
CAGE: 5WS66 — BOSSARD METRICS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter21.0 MILLIMETERS NOMINAL MM
overall_height5.6 MILLIMETERS MINIMUM AND 6.4 MILLIMETERS MAXIMUM MM
outside_diameter45.0 MILLIMETERS NOMINAL MM
style_designatorSPRING TENSION
surface_treatmentPHOSPHATE OVERALL
material_thickness5.0 MILLIMETERS NOMINAL MM
end_item_identification2355-01-669-0331
part_name_assigned_by_controlling_agencyCONICAL SPRING WASHERS
NSN5310-01-707-8592
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BN 1374 · 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: SPRING TENSION
•
OUTSIDE DIAMETER: 45.0 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 5.0 MILLIMETERS NOMINAL MM
•
COLOR: BLACK OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT5.6 MILLIMETERS MINIMUM AND 6.4 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER45.0 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS5.0 MILLIMETERS NOMINAL MM
COLORBLACK OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYCONICAL SPRING WASHERS
END ITEM IDENTIFICATION2355-01-669-0331
MATERIALSTEEL OVERALL
HOLE DIAMETER21.0 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 1
17092874Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 BN 1374?
BN 1374 is a WASHER,SPRING TENSION.
What parts can replace BN 1374?
There is 1 known substitute for BN 1374: 17092874. Substitute compatibility should be verified for your specific system.
What is the NSN for BN 1374?
BN 1374 is cataloged in the U.S. Government catalog under NSN 5310-01-707-8592. 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.