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MS51957-1
2-56 X 1/8 MS51957, Phil Pan Machine Screw Coarse Full Thread 300 Series S/S DFAR, MS51957-1
Description
MS 51957-1 Phillips Pan Head Machine Screw
Specifications
| Country of Origin | USA |
|---|---|
| Diameter | #2 |
| Drive Style | Cross |
| Drive Type | Phillips |
| End Application | Ttu-205 hc-130); test set ec-130e mc-130h (ac-130h an/pps-5b; aircraft an/tpn-18; radar set mk-42 & 45; radar set 5-in./54 cal an/tlq-17a; communications terminal staellite an/gsc-39(v)1; gun b-1 aircraft; traffic jam (02m jul83)(an/uyq-3a); support equipment w/s:airborne mobile dir air spt ctl (2id) |
| Fastener Length | Between 0.094 inches and 0.125 inches |
| Finish | Passivate |
| Full Size | #2-56 x 1/8 |
| Head Angle | 100 ? |
| Head Diameter | Between 0.155 inches and 0.167 inches |
| Head Height | Between 0.053 inches and 0.062 inches |
| Head Style | Phillips Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | AN507 |
| Internal Drive Style | Cross recess type 1 |
| Length | 0.125, 1/8 |
| Material | CRES |
| Material Specification | 66 federal standard all material responses |
| MilspecPart | MS51957 |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Size | 2-56 |
| Surface Treatment | Passivate |
| Thread Class | 2a |
| Thread Diameter | 0.086 |
| Thread Direction | Right-hand |
| Thread Fraction | 2-56 |
| Thread Length | Between 0.089 inches and 0.125 inches |
| Thread Qty | 56 |
| Thread Qty Per Inch (tpi) | 56 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | #2 |
| Thread Type | N.C. - Coarse, UNC-2A |
| Threads Per Inch | 56 |
| U.O.M. | Imperial |
| Weight | 0.0001 lb |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error