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Technical Data Sheet
PartsTable / COMPONENT / 19-90070-029
19-90070-029 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 11 OVERALL, hole_diameter: 0.211 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN, outside_diameter: 0.283 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN, special_features: 0.015 IN RADIUS BOTH EDGES OF INTERNAL KEY IN, style_designator: KEY, surface_treatment: CADMIUM AND CHROMATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-470-3352, 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
19-90070-029
NSN: 5310-00-470-3352
FSC: 5310
CAGE: 0AM43 — LCR ELECTRONICS, INC DIV LCR ELECTRONICS, INC. DBA ASTRODYNE TDI EMI FILTERS BU (USA)
SPECIFICATIONS
materialCOPPER ALLOY 11 OVERALL
hole_diameter0.211 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN
outside_diameter0.283 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
special_features0.015 IN RADIUS BOTH EDGES OF INTERNAL KEY IN
style_designatorKEY
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
external_key_quantity6
internal_key_quantity1
external_straight_key_width0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
internal_straight_key_width0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
overall_distance_including_keys0.289 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
NSN5310-00-470-3352
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 19-90070-029 · 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: CADMIUM AND CHROMATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: KEY
•
EXTERNAL STRAIGHT KEY WIDTH: 0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 11 OVERALL
•
INTERNAL KEY QUANTITY: 1
•
INTERNAL STRAIGHT KEY WIDTH: 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORKEY
EXTERNAL STRAIGHT KEY WIDTH0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 11 OVERALL
INTERNAL KEY QUANTITY1
INTERNAL STRAIGHT KEY WIDTH0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
MATERIAL THICKNESS0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY6
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
BR2704Interchangeable
interchangeable cross-reference
interchangeable
5-4-6769Interchangeable
interchangeable cross-reference
interchangeable
103101Interchangeable
interchangeable cross-reference
interchangeable
3711128Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19-90070-029?
19-90070-029 is a WASHER,KEY.
What parts can replace 19-90070-029?
There are 4 known substitutes for 19-90070-029: BR2704, 5-4-6769, 103101 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 19-90070-029?
19-90070-029 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-470-3352. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026