National Item Identification Number
00-839-3221
008393221
5305-00-839-3221
5305008393221
National Stock Number
Item Name
SCREW,MACHINE
Federal Supply Class
5305
Description
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
Commercial and Government Entity Code (Supplier Data)
20418
97539
97539
97539
18876
30003
02769
LOCKHEED MARTIN CORPORATION
DBA LOCKHEED MARTIN DIV MARITIME
199 BORTON LANDING RD
MOORESTOWN
NJ
08057
856-722-4615
Reference Numbers (Part Numbers)
ES2028-07R08
R4-40-500
R4-40X1-2
SEELSKREWR4-40-5
10051717
2639714-5
67A28
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.112 INCHES
40
2A
RIGHT-HAND
0.500 INCHES MAXIMUM
0.500 INCHES NOMINA
