Setscrew P/N MS51963-71

Specifications

Thread quantity per inch

20

Material document and classification

Overall Fed STD All Material Responses 66

Thread direction

Right-Hand

Material

Overall Steel Comp 4037 or Steel Comp 4137 or Steel Comp 4140 or Steel Comp 8630 or Steel Comp 8740

Thread series designator

Unified National Coarse (UNC)

Surface treatment

Overall Cadmium and Chromate

Hardness rating

Overall Rockwell C Minimum 45.0 and Rockwell C Maximum 53.0

Thread length

1.000 in maximum

Nominal thread diameter

Inches 0.250

Width across flats

0.125 in (nominal)

Fastener length

1.000 in (nominal)

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416 TY 2 CL 3

Thread class

3A

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

MS51963-71

Also referenced as

MILB933TYPEG

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 43 on the shelf
Unit of issue	EA each
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5305-00-723-9379?
NSN 5305-00-723-9379 (5305007239379) — Setscrew: SECO Parts has 43 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for setscrew in federal supply class 5305 (Screws).

Is NSN 5305-00-723-9379 available?
SECO Parts has 43 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5305-00-723-9379 cost?
NSN 5305-00-723-9379 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.

What part numbers cross-reference to NSN 5305-00-723-9379?
Part numbers that cross-reference this NSN include MS51963-71. It is also referenced by older, superseded or advisory numbers: MILB933TYPEG. SECO can quote against any of them.