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416B191P2 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

416B191P2: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 3.720 INCHES MINIMUM AND 3.740 INCHES MAXIMUM IN, outside_diameter: 4.040 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN, special_features: WASHER CONTAINS TWO PRE-BENT INTERNAL KEYS,LOCATED 180 DEGREES APART, style_designator: KEY, material_thickness: 0.022 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-348-3497, 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
416B191P2
NSN: 5310-00-348-3497
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter3.720 INCHES MINIMUM AND 3.740 INCHES MAXIMUM IN
outside_diameter4.040 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN
special_featuresWASHER CONTAINS TWO PRE-BENT INTERNAL KEYS,LOCATED 180 DEGREES APART
style_designatorKEY
material_thickness0.022 INCHES NOMINAL IN
external_key_quantity23
internal_prebent_key_width0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
external_straight_key_width0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
internal_prebent_key_length0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
overall_distance_including_keys4.320 INCHES MINIMUM AND 4.340 INCHES MAXIMUM IN
material_document_and_classificationAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-348-3497
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 416B191P2 · 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
•
INTERNAL PREBENT KEY WIDTH: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 4.320 INCHES MINIMUM AND 4.340 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 4.040 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.022 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 23
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS4.320 INCHES MINIMUM AND 4.340 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER4.040 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY23
INTERNAL PREBENT KEY LENGTH0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
SPECIAL FEATURESWASHER CONTAINS TWO PRE-BENT INTERNAL KEYS,LOCATED 180 DEGREES APART
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 416B191P2?
416B191P2 is a WASHER,KEY.
What is the NSN for 416B191P2?
416B191P2 is cataloged in the U.S. Government catalog under NSN 5310-00-348-3497. This indicates validated use in U.S. government and defense supply chains.
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