ANPT Ring Gages

Thread Check Inc. offers a complete range of Aeronautical National Form Taper Pipe Thread Ring Gages per SAE AS71051. ANPT thread ring gages are intended for use on pipe, plugs, fittings, and similar devices in aeronautical components and equipment requiring a sealed thread joint and where straight threads and gaskets or O‐rings are inadequate. Other standards referenced are MIL‐G‐10944 ‐ Gages, Dimensional Control and AND10052 ‐ Bosses ‐ Standard Dimensions For External Pipe Thread. Inspection gages shall not be used when worn beyond the basic dimensions by more than a ½ turn or pitch. In the case of external threads, the fitting or pipe is within extreme limits when the end of the fitting or pipe is within one turn either way of the small end of the ring gage. If requirements exists for external or internal threads to be chamfered or countersunk in excess of the dimensions in table 1 of the standard, then the thread size should be determined by using as the reference point, the end of the chamfer or bottom of the countersink ( first thread scratch ) instead of from the end of the pipe or fitting.

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SKU	Description	Dec.	Frac.	TPI	L1/L2/6 Step	Each
ANPT-1/16-L1-RG	1/16 - 27 ANPT L1 Ring Gage	0.0625	1/16	27	L1	$384.00
ANPT-1/16-L2-RG	1/16 - 27 ANPT L2 Ring Gage	0.0625	1/16	27	L2	$447.00
ANPT-1/16-L6-RG	1/16 - 27 ANPT 6 Step Ring Gage	0.0625	1/16	27	6 Step	$475.00
ANPT-1/8-L1-RG	1/8 - 27 ANPT L1 Ring Gage	0.125	1/8	27	L1	$341.00
ANPT-1/8-L2-RG	1/8 - 27 ANPT L2 Ring Gage	0.125	1/8	27	L2	$414.00
ANPT-1/8-L6-RG	1/8 - 27 ANPT 6 Step Ring Gage	0.125	1/8	27	6 Step	$475.00
ANPT-1/4-L1-RG	1/4 - 18 ANPT L1 Ring Gage	0.250	1/4	18	L1	$330.00
ANPT-1/4-L2-RG	1/4 - 18 ANPT L2 Ring Gage	0.250	1/4	18	L2	$421.00
ANPT-1/4-L6-RG	1/4 - 18 ANPT 6 Step Ring Gage	0.250	1/4	18	6 Step	$468.00
ANPT-3/8-L1-RG	3/8 - 18 ANPT L1 Ring Gage	0.375	3/8	18	L1	$330.00
ANPT-3/8-L2-RG	3/8 - 18 ANPT L2 Ring Gage	0.375	3/8	18	L2	$414.00
ANPT-3/8-L6-RG	3/8 - 18 ANPT 6 Step Ring Gage	0.375	3/8	18	6 Step	$468.00
ANPT-1/2-L1-RG	1/2 - 14 ANPT L1 Ring Gage	0.500	1/2	14	L1	$303.00
ANPT-1/2-L2-RG	1/2 - 14 ANPT L2 Ring Gage	0.500	1/2	14	L2	$429.00
ANPT-1/2-L6-RG	1/2 - 14 ANPT 6 Step Ring Gage	0.500	1/2	14	6 Step	$468.00
ANPT-3/4-L1-RG	3/4 - 14 ANPT L1 Ring Gage	0.750	3/4	14	L1	$321.00
ANPT-3/4-L2-RG	3/4 - 14 ANPT L2 Ring Gage	0.750	3/4	14	L2	$468.00
ANPT-3/4-L6-RG	3/4 - 14 ANPT 6 Step Ring Gage	0.750	3/4	14	6 Step	$523.00
ANPT-1.0-L1-RG	1-11-1/2 ANPT L1 Ring Gage	1.000	1.0	11-1/2	L1	$414.00
ANPT-1.0-L2-RG	1-11-1/2 ANPT L2 Ring Gage	1.000	1.0	11-1/2	L2	$513.00
ANPT-1.0-L6-RG	1-11-1/2 ANPT 6 Step Ring Gage	1.000	1.0	11-1/2	6 Step	$523.00
ANPT-1-1/4-L1-RG	1-1/4 - 11-1/2 ANPT L1 Ring Gage	1.250	1-1/4	11-1/2	L1	$414.00
ANPT-1-1/4-L2-RG	1-1/4 - 11-1/2 ANPT L2 Ring Gage	1.250	1-1/4	11-1/2	L2	$539.00
ANPT-1-1/4-L6-RG	1-1/4 - 11-1/2 ANPT 6 Step Ring Gage	1.250	1-1/4	11-1/2	6 Step	$575.00
ANPT-1-1/2-L1-RG	1-1/2 - 11-1/2 ANPT L1 Ring Gage	1.500	1-1/2	11-1/2	L1	$447.00
ANPT-1-1/2-L2-RG	1-1/2 - 11-1/2 ANPT L2 Ring Gage	1.500	1-1/2	11-1/2	L2	$601.00
ANPT-1-1/2-L6-RG	1-1/2 - 11-1/2 ANPT 6 Step Ring Gage	1.500	1-1/2	11-1/2	6 Step	$647.00
ANPT-2.0-L1-RG	2-11-1/2 ANPT L1 Ring Gage	2.000	2.0	11-1/2	L1	$629.00
ANPT-2.0-L2-RG	2-11-1/2 ANPT L2 Ring Gage	2.000	2.0	11-1/2	L2	$692.00
ANPT-2.0-L6-RG	2-11-1/2 ANPT 6 Step Ring Gage	2.000	2.0	11-1/2	6 Step	$724.00

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