The PACKING NUT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 932, slot_width: 0.250 INCHES NOMINAL IN, thread_size: 3.250-12, thread_class: 3A A, thread_length: 0.437 INCHES NOMINAL IN, overall_length: 1.050 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 4730-00-609-9804, 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
S-81-225
NSN:4730-00-609-9804 FSC:4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings CAGE:60285 — EATON CORPORATION DBA JACKSON PLANT (USA)
SPECIFICATIONS
material
COPPER ALLOY 932
slot_width
0.250 INCHES NOMINAL IN
thread_size
3.250-12
thread_class
3A A
thread_length
0.437 INCHES NOMINAL IN
overall_length
1.050 INCHES NOMINAL IN
special_features
RADIUS ON SHOULDERS 0.093 IN. MIN TO 0.109 IN. MAX IN
style_designator
ROUND SLOTTED, EXTERNAL THREAD, BOSS
thread_direction
RIGHT-HAND
hole_or_slot_quantity
1
screw_thread_location
EXTERNAL
thread_pitch_diameters
+3.1912 TO 3.1959 INCHES IN
NSN
4730-00-609-9804
COMPONENT DIAGRAM
KEY FEATURES
•
HOLE OR SLOT QUANTITY: 1
•
THREAD LENGTH: 0.437 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND SLOTTED, EXTERNAL THREAD, BOSS
•
THREAD PITCH DIAMETERS: +3.1912 TO 3.1959 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 3.250-12
TECHNICAL CHARACTERISTICS
HOLE OR SLOT QUANTITY
1
THREAD LENGTH
0.437 INCHES NOMINAL IN
STYLE DESIGNATOR
ROUND SLOTTED, EXTERNAL THREAD, BOSS
THREAD PITCH DIAMETERS
+3.1912 TO 3.1959 INCHES IN
OVERALL LENGTH
1.050 INCHES NOMINAL IN
THREAD DIRECTION
RIGHT-HAND
CASEHARDENING INDICATOR
NOT CASEHARDENED
THREAD SIZE
3.250-12
SPECIAL FEATURES
RADIUS ON SHOULDERS 0.093 IN. MIN TO 0.109 IN. MAX IN
SCREW THREAD SERIES DESIGNATOR
UN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is S-81-225?
S-81-225 is a PACKING NUT.
What parts can replace S-81-225?
There is 1 known substitute for S-81-225: 86801PC3. Substitute compatibility should be verified for your specific system.
What is the NSN for S-81-225?
S-81-225 is cataloged in the U.S. Government catalog under NSN 4730-00-609-9804. This indicates validated use in U.S. government and defense supply chains.
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