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22566-16 — PACKING,PREFORMED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

22566-16: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, temp_rating: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, center_hole_diameter: 0.616 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN, cross-sectional_height: 0.053 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN, cross-sectional_shape_style: O-RING, material_document_and_classification: MIL-R-25897 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-235-5264, 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
22566-16
NSN: 5306-00-235-5264
NIINs: 002355264, 010240060
FSC: 5306 — Bolts
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
temp_rating-65.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
center_hole_diameter0.616 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN
cross-sectional_height0.053 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
material_document_and_classificationMIL-R-25897 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5306-00-235-5264
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 22566-16 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 1.281 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.407 INCHES MINIMUM AND 1.469 INCHES MAXIMUM IN
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SHOULDER LENGTH: 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM FIRST SHOULDER IN
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SHOULDER DIAMETER: 0.500 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.486 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
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SHOULDER SHAPE: ROUND FIRST SHOULDER
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HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: Q-S-624,COMP 4140 FED SPEC 13TH MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT1.281 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN
FASTENER LENGTH1.407 INCHES MINIMUM AND 1.469 INCHES MAXIMUM IN
SHOULDER LENGTH0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER0.500 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.486 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQ-S-624,COMP 4140 FED SPEC 13TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEXAGON
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 22566-16?
22566-16 is a PACKING,PREFORMED.
What is the NSN for 22566-16?
22566-16 is cataloged in the U.S. Government catalog under NSN 5306-00-235-5264. 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.