NAS 538 Bushing, Flanged - MET Military Standard Parts

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NAS Standard - Bushing, Flanged

NAS 538

BUSHING, FLANGED - PRECISION BORE - NAS CONFORMING - FSC 3120

NSN Traceable C of C Available 547 Part Numbers Contact Us

Standard

NAS 538 Flanged

Type

Bushing, Flanged

Material

Per NAS 538 Drawing

Finish

As Machined / Per Drawing

Dash Range

-3 through -20

Documentation

C of C + MTR

C of C MTR NAS 538 Drawing

Specification Data — NAS 538 Dimensions

Dash No.	Nom. Ream Hole Dia (in)	Inside Dia ØA (in)	Body OD ØB (in)	Flange OD ØC (in)
-3	0.1900"	0.1790"+.0050 / -.0000	0.3136"+.0000 / -.0005	0.447"+.000 / -.020
-4	0.2500"	0.2380"+.0050 / -.0000	0.3761"+.0000 / -.0005	0.510"+.000 / -.020
-5	0.3125"	0.3010"+.0050 / -.0000	0.4386"+.0000 / -.0005	0.572"+.000 / -.020
-6	0.3750"	0.3590"+.0070 / -.0000	0.5013"+.0000 / -.0007	0.635"+.000 / -.020
-7	0.4375"	0.4220"+.0070 / -.0000	0.5638"+.0000 / -.0007	0.697"+.000 / -.020
-8	0.5000"	0.4840"+.0070 / -.0000	0.6265"+.0000 / -.0008	0.760"+.000 / -.020
-9	0.5625"	0.5460"+.0070 / -.0000	0.6892"+.0000 / -.0010	0.822"+.000 / -.020
-10	0.6250"	0.6090"+.0070 / -.0000	0.8142"+.0000 / -.0010	1.010"+.000 / -.020
-11	0.6875"	0.6710"+.0070 / -.0000	0.8767"+.0000 / -.0010	1.072"+.000 / -.020
-12	0.7500"	0.7340"+.0070 / -.0000	0.9393"+.0000 / -.0010	1.135"+.000 / -.020
-14	0.8750"	0.8590"+.0070 / -.0000	1.0648"+.0000 / -.0010	1.260"+.000 / -.020
-16	1.0000"	0.9840"+.0070 / -.0000	1.1898"+.0000 / -.0010	1.385"+.000 / -.020
-18	1.1250"	1.0940"+.0120 / -.0000	1.3148"+.0000 / -.0010	1.510"+.000 / -.020
-20	1.2500"	1.2190"+.0120 / -.0000	1.4399"+.0000 / -.0010	1.635"+.000 / -.020

Per NAS538 Table I. Flange thickness .060 (+.000 / -.005). Length L in .010 increments (+.000 / -.005). Inside dia ØA is undersize, intended for reaming after installation. Contact us for non-standard sizes.

Custom Part Number Builder

No NSN Assigned

Build any NAS 538 part number conforming to the specification, including numbers without an assigned NSN. Choose the codes below to generate your part number and add it to your quote basket.

Prefix Code

Dash Number

Code Letter

Length Code (3 digits)

Generated Part Number

NAS538-4P025

Format: NAS538-[Dash][Code][Length] (e.g. NAS538-8P053) or NAS538[Prefix][Dash][Code][Length] (e.g. NAS538B3P005). Verify against the NAS 538 drawing. Contact us to confirm availability and lead time.