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10566-B18L1 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10566-B18L1: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include thread_class: 3B, nominal_thread_size: 1.120 INCHES IN, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-431-4240, 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
10566-B18L1
NSN: 5310-01-431-4240
FSC: 5310 — Nuts and Washers
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
thread_class3B
nominal_thread_size1.120 INCHES IN
thread_quantity_per_inch8
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NSN5310-01-431-4240
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10566-B18L1 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
NOMINAL THREAD SIZE: 1.120 INCHES IN
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 8
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
NOMINAL THREAD SIZE1.120 INCHES IN
THREAD CLASS3B
THREAD QUANTITY PER INCH8
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
SUBSTITUTES & CROSS-REFERENCES 7
PL-10591-H-18 ITEM 179AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
B-112B179HX1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
10591-H-18 ITEM 179AReference document
Same NSN cross-reference
Reference document — Secondary reference
PL-10591-F-18 ITEM 179AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PL-10591-F-18 ITEM 179AReference document
Same NSN cross-reference
Reference document — Secondary reference
11940-F-18 ITEM 179AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10566-B18L1?
10566-B18L1 is a NUT,PLAIN,HEXAGON.
What parts can replace 10566-B18L1?
There are 7 known substitutes for 10566-B18L1: PL-10591-H-18 ITEM 179AL1, B-112B179HX1, 10591-H-18 ITEM 179A and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10566-B18L1?
10566-B18L1 is cataloged in the U.S. Government catalog under NSN 5310-01-431-4240. This indicates validated use in U.S. government and defense supply chains.
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